The evidence accumulation process, accounts payable schedule verification may include the use of analytical procedures. Which one of the following is an analytical procedure? Select one: O a. Comparing the balance on the schedule with the balance of prior years. O b. Comparing confirmations received from creditors with the accounts payable ledger. O c. Comparing the schedule with the accounts payable ledger. O d. Examining vendor's invoices in support of selected items on the schedule