A 12-month insurance policy was purchased on Dec. 1 for $4,800 and the Prepaid insurance account was initially increased for the payment. The required adjusting journal entry on December 31 includes a:_________
a. credit to Prepaid insurance for $400.
b. debit to Insurance expense for $400.
c. credit to Insurance expense for $400.
d. debit to Prepaid insurance for $400.
e. debit to Insurance expense for $4,800.