A Company Employs Three Accounts Payable Clerks and One Treasurer

A company employs three accounts payable clerks and one treasurer.Their responsibilities are as follows: Which of the following would indicate a weakness in the company's internal controls?

A) Clerk 1 opens all of the incoming mail.
B) Clerk 2 reconciles the accounts payable ledger with the general ledger monthly.
C) Clerk 3 mails the checks and remittances after they have been signed.
D) The treasurer uses a stamp for signing checks.