Veggie Corp. uses a standard cost system. In May, Veggie purchased and used 17,500 pounds of materials at a cost of $70,000. The materials usage variance was $2,500 unfavorable and the standard materials allowed for May production was 17,000 pounds. What was the materials price variance for May?
a. $17,500 favorable
b. $17,500 unfavorable
c. $15,000 favorable
d. $15,000 unfavorable