CRM Analytics for Public Sector. This is the lowest-customization answer that still satisfies the business, security, and lifecycle requirements.
The Core Concept Explained: Experience Cloud design is driven by persona, authentication, scale, and sharing. The wrong template or license can create unnecessary cost, weak security, or excessive customization.
Step-by-Step Technical Analysis: Begin with the external persona, authentication requirement, and transaction volume. Select the Experience Cloud license or template that matches that access pattern, then configure sharing sets, external OWD, site visibility, and page access. Finish by testing the experience as anonymous, authenticated, and internal users. Use CRM Analytics for Public Sector because it includes purpose-built analytics templates for Public Sector operating areas such as licensing, permitting, inspections, case activity, and related metrics.
Why the Incorrect Options Are Wrong: A may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. B may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. C may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer.

Uncheck the "Site User Visibility" checkbox in the Sharing Settings page. This maps the scenario to the Salesforce-native capability that owns the requirement.
The Core Concept Explained: Experience Cloud design is driven by persona, authentication, scale, and sharing. The wrong template or license can create unnecessary cost, weak security, or excessive customization.
Step-by-Step Technical Analysis: Begin with the external persona, authentication requirement, and transaction volume. Select the Experience Cloud license or template that matches that access pattern, then configure sharing sets, external OWD, site visibility, and page access. Finish by testing the experience as anonymous, authenticated, and internal users. Uncheck Site User Visibility in Sharing Settings.
Why the Incorrect Options Are Wrong: A does not meet the implementation-quality bar for security, scale, auditability, or maintainability in this scenario. B does not meet the implementation-quality bar for security, scale, auditability, or maintainability in this scenario. D points to a disablement approach that either is not supported for the tested feature or would remove a capability the scenario depends on.

A (Expression Sets); D (Decision Matrix); E (Decision Table). This is the packaged route that keeps the process supportable, auditable, and aligned to the data model.
The Core Concept Explained: Business Rules Engine externalizes decision logic from custom code.
Expression Sets orchestrate calculations and can call decision assets so policy thresholds remain maintainable by authorized business users.
Step-by-Step Technical Analysis: Identify the inputs that drive the decision, declare them as Expression Set resources, and use Decision Matrices or Decision Tables where business users must maintain rule thresholds.
Execute representative samples before activation, then confirm the output and Decision Explainer history match the expected eligibility, fee, or prioritization result. Expression Sets orchestrate the rule flow and call decision assets.
Why the Incorrect Options Are Wrong: B may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. C may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer.

The Licenses and Permits template. This answer fits because the requirement is about the specific platform mechanism named in the option, not a nearby workaround.
The Core Concept Explained: Experience Cloud design is driven by persona, authentication, scale, and sharing. The wrong template or license can create unnecessary cost, weak security, or excessive customization.
Step-by-Step Technical Analysis: Begin with the external persona, authentication requirement, and transaction volume. Select the Experience Cloud license or template that matches that access pattern, then configure sharing sets, external OWD, site visibility, and page access. Finish by testing the experience as anonymous, authenticated, and internal users. Use the Licenses and Permits Experience Cloud template because it includes preconfigured pages and components for licensing and permitting journeys.
Why the Incorrect Options Are Wrong: B may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. C adds a custom build path and increases lifecycle, security, and upgrade effort when a packaged or declarative capability already supports the requirement. D may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer.

OmniOut. This maps the scenario to the Salesforce-native capability that owns the requirement.
The Core Concept Explained: OmniStudio separates guided interaction, data mapping, orchestration, and UI presentation. That separation is critical for high-volume public-sector intake because each asset can be tested and reused independently.
Step-by-Step Technical Analysis: Design the user journey first, then decide which OmniStudio asset owns each responsibility. OmniScript captures guided input, DataRaptors map Salesforce data, Integration Procedures orchestrate server-side work, and FlexCards expose summarized context. After assembly, validate data payloads, error handling, security, and performance with realistic application records. Use OmniOut to run OmniStudio components outside Salesforce while preserving the OmniScript-driven experience and server-side integration back to Salesforce.
Why the Incorrect Options Are Wrong: A may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. B may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer. D may look related, but it does not place the logic in the correct declarative Public Sector or OmniStudio configuration layer.