The Internal Control Questionnaire for Purchases and Accounts Payable Includes $\quad$

The internal control questionnaire for purchases and accounts payable includes the following questions.Next to each of the questions,indicate the letter of the related transaction assertion.
A.Occurrence
B.Completeness
C.Accuracy
D.Classification
E.Cutoff ----- $\quad$ 1. Are vendors' monthly statements reconciled with individual accounts payable accounts?
----- $\quad$ 2. Are all purchases made only on the basis of approved purchase requisitions?
----- $\quad$ 3 Are vendors' invoices listed immediately upon receipt?
----- $\quad$ 4. Are vendors' invoices matched against purchase orders and receiving reports before a liability is recorded?
----- $\quad$ 5. Is the accounts payable customer ledger balanced periodically with the general ledger control account?
----- $\quad$ 6. Does the accounting manual give instructions to date purchase entries on the date of receipt of goods?
----- $\quad$ 7. Are shipping documents authorized and prepared for goods returned to vendors?
----- $\quad$ 8. Is the accounts payable department notified of goods returned to vendors?