Exam Certified Sharing and Visibility Architect topic 1 question 81 discussion

This is a best answer question, so A is the choice. A, B, C provide the needed functionality. Sharing Sets are specifically for Customer and Partner communities (external users) and use profiles instead of of roles and public groups. Sharing rules can be used for role based licenses only (Customer Community Plus, Partner User), so this is a viable option. Sharing rules are generally used for broader sharing criteria and may not be as suitable for this specific scenario and maintenance issues will arise.