Which of the following might produce an account balance that is not normal?

a. Underpayment of an account payable
b. Over payment of an account receivable by a customer
c. under accrual of interest expense
d. none of above

Which of the following might produce an account balance that is not normal?

a. Underpayment of an account payable
b. Over payment of an account receivable by a customer
c. under accrual of interest expense
d. none of above

I felt it was C but not sure

B will produce a prepaid amount by a customer, which will be a credit amount in accounts receivable. The other transactions will still produce a normal looking balance in the accounts.