omprehensive and Detailed Explanation with all Platform App Builder documents: = The correct answer is A. Sandbox cloning.
Cloud Kicks needs many parallel sandboxes that start from the same base configuration and data. Sandbox cloning is designed for this because Salesforce copies the source sandbox's data and metadata into a new sandbox. Salesforce documentation states that cloning a sandbox copies its data and metadata into the new sandbox.
Partial copy and full copy are sandbox types, not the best mechanism for repeatedly creating many sandboxes from the same prepared baseline. Sandbox refreshes update existing sandboxes; they do not create at least 20 parallel environments from the same baseline.

Text Area (Rich), commonly called a Rich Text Area field, is the appropriate Salesforce field type when users need formatted content rather than plain text. Salesforce ' s rich text editor supports formatting such as bold and italics, numbered and bulleted lists, hyperlinks, alignment, indentation, and embedded images. This makes it suitable for white-paper-style material containing structured text, lists, links, and graphics. A standard Text Area provides only limited plain-text content. Text Area (Long) increases the amount of text that can be stored but does not provide the rich formatting and image capabilities required here. An encrypted text area is intended to protect sensitive information and is unrelated to formatted document presentation.
Therefore, Rich Text Area is the correct declarative field type.

The correct answers are B. Upload the lead list using the Import Wizard and select a Matching Type to prevent duplicate lead creation and D. Utilize a Lead Matching Rule and corresponding Duplicate Rule to block newly created duplicate leads.
For 400 leads, the Data Import Wizard is appropriate because Salesforce supports importing leads and other common objects with the wizard, and it can handle up to 50,000 records.
Salesforce documentation for lead imports states that choosing a matching type sets criteria for avoiding duplicate leads when using the Data Import Wizard.
Duplicate Management also uses matching rules and duplicate rules to identify and control duplicates.
Salesforce states that duplicate rules can block users from creating duplicate records, including lead duplicates.
Why others are incorrect:
A is incorrect because Data Loader's update operation updates existing records and normally requires record IDs or proper matching/upsert configuration; it is not the best duplicate-prevention answer here.
C is not the correct Salesforce setup wording. The correct tools are Lead Matching Rules and Duplicate Rules.

The correct answer is D. Create a new text field and import the formula field values in it.
The existing Specialty__c field is a formula field, so users cannot manually edit it. Formula fields calculate their value automatically from other fields. Since Cloud Kicks now wants Opportunity Specialty__c values to be different from the related Account value, the app builder should create a new editable field, such as a Text field, and then load the existing calculated formula values into that new field for existing Opportunity records.
This preserves historical Opportunity values while allowing sales reps to enter or update Specialty values going forward. Salesforce documentation explains that roll-up/formula-style calculated values are system- derived, while changing custom field types has limitations and requires care when data must be preserved.
A and B are incorrect because a formula field cannot simply become an editable text field while safely preserving all existing calculated values.
C is incomplete because creating a new text field without importing the existing formula values does not preserve the current values on existing Opportunities.

The correct answer is C. Compact layout.
Compact layouts control the key fields shown in the record highlights area at the top of a record, including in the Salesforce mobile app. Salesforce documentation states that compact layout fields populate the record highlights section at the top of record views in the Salesforce mobile app.
Why others are incorrect:
A). Mobile navigation controls navigation menu items, not fields on a record.
B). Record Detail component shows record fields but does not specifically place key fields at the top.
D). Object specific action is used for actions, not at-a-glance field display.