Answer:
D. $4,280 under-applied
Step-by-step explanation:
Provided information,
Estimated direct labor hours = 11,200
Estimated manufacturing overhead = $259,840
Estimated rate per hour =

Actual labor hours = 10,800
Estimated overhead for actual hours = 10,800
$23.2 = $250,560
Actual overheads incurred = $254,840
Thus actual overheads are under absorbed by $254,840 - $250,560 = $4,280.
Correct option is
D. $4,280 under-applied