3. Bravo Company manufactures metal tubing. The standard materials usage for each unit is 0.5 pounds. The standard cost of metal is $4 per pound. Actual results for September follow: production, 100,000 units; materials used, 55,000 pounds; and materials purchased, 70,000 pounds ($273,000). The material purchase price variance for September is _____.

A. $7,000 favorable

B. $53,000 unfavorable

C. $20,000 unfavorable

D. $60,000 unfavorable

E. none of the above