15. Which of the following entries made to record the payment of $1,000 on account will cause the trial balance to be out of balance? a. Cash is debited for $1,000 and Service Revenue is credited for $1,000. b. Cash is debited for $100 and Accounts Payable is credited for $100. c. Both Cash and Accounts Payable are credited for $1,000. d. A transaction is not recorded