Choice "D" is correct. Matching vendor's invoices with receiving reports provides authorization for payment and is generally performed in the accounts payable department. Recalculation of vendor invoices is compatible with this authorization function.
Choice "c" is incorrect. Posting the accounts payable records (recording) is incompatible with matching (authorization). Generally these functions would be performed by two different employees.
Choice "a" is incorrect. This review procedure (independent verification) should be performed by someone independent of the employee who approved the invoice for payment.
Choice "b" is incorrect. Payment and cancellation of vendor invoices should be performed by someone (generally the treasurer) other than the individual authorizing payment.