This answer is not the best answer. It should be B.

You can uncheck the 'Grant Access Using Hierarchies' in sharing settings, but the point to remember is the impact will be on the object level and not for any specific users.

As for Criteria-based sharing rules: yhis type of sharing allows administrators to specify specific criteria that determine who can access records in the custom object. For example, the administrator could specify that only HR personnel and the employee who submitted the feedback can access the record, while excluding managers.