Amanufacturing company that has only one product has established the following standards for its variable manufacturing overhead. the company bases its variable manufacturing overhead standards on direct labor-hours. standard hours per unit of output 3.80 dlhs standard variable overhead rate $ 11.15 per dlh the following data pertain to operations for the last month: actual direct labor-hours 8,700 dlhs actual total variable manufacturing overhead cost $ 95,840 actual output 2,100 units.
what is the variable overhead rate variance for the month?

a.) 1446f
b.) 1446u
c.) 1165f
d.) 1165u