Answer:
(D) has been overapplied.
Step-by-step explanation:
Provided information
Credit balance of Manufacturing overhead account = $86,000
Debit balance of Manufacturing overhead account would be
= $30,000 + $24,000 + $28,000
= $82,000
Since the debit balance is $82,000 and the credit balance is $86,000 which reflect that the overhead is over applied by $4,000 i.e
= $82,000 - $86,000
= $4,000