For Yukon Company, the per-unit standards for direct materials are 15.7 gallons at $3.10 per gallon. Last month, 13,550 gallons of direct materials that actually cost $44,800 were used to produce 790 units of product. What was Yukon company's materials quantity variance for last month?

A. $3,556 Unfavorable

B. $3,556 Favorable

C. $2,795 Unfavorable

D. $2,795 Favorable