Which of the Following Internal Controls Wold Help Prevent Overpayment

Which of the following internal controls wold help prevent overpayment to a vendor or duplicate payment to a vendor?

A) Review and cancellation of supporting documents after issuing payment
B) Requiring the check signer to mail the payment to the vendor
C) Review of the accounts where the expenditure transaction has been recorded
D) Approving the purchase before the goods are ordered from the vendor