During June, Cisco Company produced 12,000 chainsaw blades. The standard quantity of material allowed per unit was 1.5 pounds of steel per blade at a standard cost of $8 per pound. The actual cost was $7 per pound. The actual pounds of steel that Cisco purchased were 19,500 pounds. All materials purchased were used. Calculate Cisco's materials usage variance.

A. $10,500 U
B. $10,500 F
C. $12,000 U
D. $12,000 F