The correct answer is B. Add the standard Chatter feed component.

To show Chatter on a custom object Lightning record page, the app builder should use the standard Chatter Feed / Chatter component in Lightning App Builder. Salesforce documentation describes adding Chatter components such as Chatter Feed, Chatter Publisher, and Chatter to Lightning record pages, usually after feed tracking is enabled for the object.

A is incorrect because a related list component does not display the Chatter feed.

C and D are incorrect because a custom component or AppExchange component is not required for standard Chatter feed functionality.

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The correct answer is A. Sharing rules.

Because the Account OWD is Private, users can’t automatically see records owned by users in another branch of the role hierarchy. Salesforce sharing rules are used to extend record access beyond the organization-wide default and role hierarchy. Salesforce documentation states that sharing rules grant additional access to users in public groups, roles, or territories.

Why others are incorrect:

B. Public groups can be used inside a sharing rule, but the public group alone does not share records.

C. Aliases are user display shortcuts, not security controls.

D. Assignment rules assign records; they do not grant cross-team record visibility.

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The correct answer is D. For use on the utility bar.

For a custom Lightning web component to appear as an available component in the utility bar, it must be exposed in its metadata configuration with the lightning__UtilityBar target. Salesforce developer documentation states that lightning__UtilityBar enables a component to be used as a utility item in an app’s utility bar, and the component must be exposed with the appropriate target.

B. For use in Lightning App Builder is broader and not enough by itself for utility-bar availability. C. For use on record pages exposes the component for record pages, not the utility bar. A. For use in App Manager is not the correct component target wording.

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Change sets can be exchanged only between deployment-connected organizations, such as a production org and its own sandboxes. UMS Logistics is a separate production organization and has no deployment relationship with the UMS source environment, so an outbound change set cannot be sent there. Salesforce documents unmanaged packages as a mechanism for packaging metadata components in a source org, uploading the package, obtaining an installation URL, and installing those components into another Salesforce organization. A managed package is intended primarily for distributed applications requiring namespace and provider-controlled versioning, such as commercial AppExchange solutions, and is unnecessary for this evaluation transfer. A sandbox likewise cannot be refreshed from an unrelated organization ' s Developer sandbox. Therefore, the appropriate deployment vehicle is an unmanaged package installed through its generated URL.