How should an administrator configure the custom object to meet this requirement?

The Human resources department at Northern Trail outfitters wants employees to provide feedback about the manager using a custom object in Salesforce. It is important that managers are unable to see the feedback records from their staff.

How should an administrator configure the custom object to meet this requirement?
A . Uncheck grant access using Hierarchies.
B . Define a criteria-based sharing rules.
C . Set the default external access to private.
D . Configure an owner-based sharing rules.

Answer: B