What is the reason the sales manager is not able to view the contact?

A sales manager is receiving an "insufficient privileges" error when viewing a contact. The contact owner is under the manager in the role hierarchy.

What is the reason the sales manager is not able to view the contact?
A . The contact owner has not selected the option to share contacts with others in the role hierarchy.
B . The contact sharing settings are private, so access to the record is limited to the contact owner and system administrator.
C . The account sharing settings are controlled by the parent, and the account owner is not under the sales manger’s role.
D . The contact sharing settings are controlled by the parent, and the account owner is not under the sales manager’s role.

Answer: C