Universal Containers has implemented a community for its customers using the Customer Community sense type. They have implemented a custom object to store service requests that has a look up to the account record. The Organization Wide Default External Access for the service request object is set to Private. Universal Containers wants their customers to be able to see service requests for their account through the community. Customers should not see service requests for other accounts. What Salesforce feature can the Architect use to implement this?

a) Use manual sharing to share the service requests manually when a new community user is added.

b) Use a Sharing Set to share service requests related to the account based on the community user's profile.

c) Use a Sharing Rule to share service requests to the community user based on their role.

d) Use Apex Managed Sharing to share service requests related to the account to the appropriate community users.