An administrator notices there are too many duplicate records, numerous sharing rules, and a large number of manually shared records. This situation maybe a symptom of…

A. A role hierarchy that has too few roles
B. A sharing model that is too public.

C. A sharing model that is too private.

D. Object permissions on profiles that are too restrictive.

Explanation/Reference:
With a private sharing model, users can’t see if records already exist in the system and create new ones that they can see. Also, IT receives many requests for additional access to users as well as users individually sharing records.