Use the Following Information to Answer Questions Below

Use the following information to answer Questions below.
Landreth Fencing considers 3,000 direct labor hours or 50 fences to be its normal monthly capacity. Its standard variable overhead rate is $12 per direct labor hour. During the current month, $29,800 of variable overhead costs were incurred in working 2,950 direct labor hours to complete 45 fences.
-What is the total variable overhead flexible budget variance?

A) $2,600 F
B) $6,800 F
C) $5,000 U
D) $8,600 U
E) None of the above