Which two options should a consultant recommend to meet the requirements?

Northern Trail Outfitter has created a Complaints custom object related to Accounts. Due to the sensitive nature of these records, the object’s visibility has been set to Private. A dedicated subnet of support users who will work on these items has been added to a Complaints Specialist public group. Only users within the Complaints Specialist public group should be able to view and edit any Compliant record.

Which two options should a consultant recommend to meet the requirements? Choose 2 answers
A . Use Apex managed sharing to grant record access to users In the Complaints Specialist public group and restrict manager visibility.
B . Uncheck the Grant Access Using Hierarchies checkbox in Sharing Settings for the Complaints object.
C . Create a catena-based sharing rule that grants Read/Write access to the Complaints Specialist public group.
D . Set the Complaint object’s default visibility to allow only the users in the Complaints Specialist group to access the records.

Answer: B,C