Answer:
B. Debit insurance expense for $13,500 and credit prepaid insurance for $13,500.
Step-by-step explanation:
If 6 months past from the beginning of the contract then these past 6 months must be reflected as expenses in the balances.
$13,500 reflect the expenses of the past 6 months from July 1 to December 31, then the entry Debit insurance expense for $13,500 and credit prepaid insurance for $13,500 reflect the proper balances at the end of the year.