To configure customized nodes for display in ARC, developers should reference the Lightning Web Component in the Display properties of the custom ARC relationship graph. A Lightning Web Component is a custom framework for creating reusable web components that run natively in browsers and leverage modern web standards. A custom ARC relationship graph is a metadata type in Financial Services Cloud that defines how account-account relationships are displayed in ARC, such as node shape, color, size, label, or icon. You can use Lightning Web Components and custom ARC relationship graphs to create customized nodes for ARC that show additional information or functionality for each account. Verified Reference: : Salesforce Help Article [9] : Salesforce Help Article [10]

The Salesforce feature that should be used for the digital onboarding process is Flows. Flows are a tool that can automate business processes and guide users or customers through screens that collect and display information. Flows can have multiple steps and branching logic that ask for different information depending on the responses. Flows can also integrate with existing data and prefill fields with information that the bank already has on file, reducing the need to ask the customer for redundant information. Flows can be embedded in Lightning pages, Experience Cloud sites, mobile apps, or websites to provide a seamless and engaging digital onboarding experience. Verified Reference: : Salesforce Help Article 1 : Salesforce Help Article 2

Explanation
The following statements are true for the Financial Services Cloud Person Account Data Model:
The Person Account is a virtual object displaying data from Accounts and Contacts objects. It represents all aspects of the person and includes data such as date of birth or tax ID number. You can use Person Accounts to store information about individual people by combining certain Account and Contact fields into a single record.
The Person Account model uses the standard Account object to hold all of the details about a person.
The Account object has been extended with custom fields and a Person Account Record Type. You can use Person Accounts to simplify your data model and reduce the number of records you need to manage.