contestada

The following materials standards have been established for a particular raw material used in the company's sole product:
Standard quantity per unit of output: 1 pound
Standard price: $16.60 per pound
The following data pertain to operations concerning the product for the last month:
Actual materials purchased: 2,200 pounds
actual cost of materials purchased: 34,650
actual materials used in production: 1,900 pounds
actual oupout: 2,100 units
What is the materials quantity variance for the month?
a) 3,320 F
b) 3,150 F
c) 4,980 U
d) 4,725 U