For each of the following accounts indicate the effect of a debit or a credit on the account and the normal balance.

a. Salaries and Wages Payable select an option select an option select an option
b. Unearned Service Revenue select an option select an option select an option
c. Rent Revenue select an option select an option select an option
d. Prepaid Insurance select an option select an option select an option
e. Advertising Expense select an option select an option select an option