Component Visibility is a feature within the Lightning App Builder that allows administrators to dynamically show or hide individual components on a Lightning record page based on specified criteria. Since the client services and customer support teams are differentiated by their assigned permission sets, the administrator can apply a visibility filter to the "Retention" related list component. This filter can be configured to render the component only for users who have the specific permission set assigned to the client services team, directly fulfilling the requirement without altering profiles or data access models.

A. Page Layout Assignment is primarily driven by user profiles and record types. Since both teams share the same profile, this method cannot be used to differentiate their page views.

C. Record Type Assignment is used to present different business processes, picklist values, and page layouts. It is an overly complex solution for controlling the visibility of a single component.

D. Sharing Settings control record-level access (which records a user can see), not the visibility of user interface components on a Lightning page.

1. Official Vendor Documentation (Salesforce Help): Dynamic Lightning Pages. This document explains how to use component visibility filters. It states, "You can control when a component appears on a Lightning record page by adding filter conditions and logic to its properties... For example, you can create a rule for a component to appear... by filtering on the user’s profile or permissions." This directly supports using permissions to control component visibility.

Reference: Salesforce Help, "Dynamic Lightning Pages," Section: "Component Visibility Filters in the Lightning App Builder."

2. Official Vendor Documentation (Salesforce Help): Assign Page Layouts in the Original Profile User Interface. This document details how page layouts are assigned. It specifies that assignments are made based on a combination of user profile and record type, confirming that it cannot differentiate between users who share the same profile.

Reference: Salesforce Help, "Assign Page Layouts in the Original Profile User Interface," Step 3.

3. Official Vendor Documentation (Salesforce Help): Control Who Sees What. This guide provides an overview of Salesforce security controls. It clearly distinguishes between object/field-level security, record-level sharing, and UI customization, placing component visibility in the latter category and sharing settings in the record-level access category.

Reference: Salesforce Help, "Control Who Sees What," Unit: "Determine the Appropriate Sharing Solution."