The predetermined overhead rate for Weed-B-Gone is $8, comprised of a variable overhead rate of $5 and a fixed rate of $3. The amount of budgeted overhead costs at normal capacity of $240,000 was divided by normal capacity of 30,000 direct labor hours, to arrive at the predetermined overhead rate of $8. Actual overhead for June was $15,800 variable and $9,100 fixed, and standard hours allowed for the product produced in June was 3,000 hours. The total overhead variance is:
a. $4,900 F.
b. $900 F.
c. $900 U.
d. $4,900 U.