What can be configured to grant agents access to different distributor accounts?

Universal Containers (UC) has implemented Customer Community with customer community plus license for its distributors. Retail distributors have part-time agents who work for multiple distributors. Those agents should have access to other distributor accounts as well.

What can be configured to grant agents access to different distributor accounts?
A . Use Apex sharing to share distributor accounts with agents using the Account__ Share table.
B. Use share group to share distributor accounts with agents who have account contact relationship.
C. Create sharing rulesto share distributor accounts with agents.
D. Create sharing set to share distributor accounts with agents using account contact relationship.

Answer: B