Explanation/Reference:
B: Assigning Access to Members
To assign access to members:
1. From the Home page, click Navigator Navigator icon, and then under Create and Manage, click Dimensions.
2. Select the dimension and member.
3. Click Assign Access icon.
4. Add, edit, or remove access.
D: The application checks access permissions at each level, first by user, then by group, based on the member's access permissions inheritance relationship. If multiple access permissions exist, the least restrictive access permission is applied (for example, Write access takes precedence over Read access).
References:
https://docs.oracle.com/cloud/latest/pbcs_common/PFUSA/assigning_access_to_members.htm
https://docs.oracle.com/cloud/latest/pbcs_common/PFUSA/
about_effective_access_permissions_to_shared_members.htm#f_navigate_workspace_570