Answer the Following Questions Using the Information Below

Answer the following questions using the information below:
Rana Company planned to use $164 of material per unit but actually used $160 of material per unit, and planned to make 1,200 units but actually made 1,000 units.
-The sales-volume variance is:

A) $32,800 unfavorable
B) $4,000 favorable
C) $4,800 favorable
D) $28,000 unfavorable