The following materials standards have been established for a particular product: Standard quantity per unit of output 5.3 meters Standard price $ 17.00 per meter Actual Price $ 17.50 The following data pertain to operations concerning the product for the last month: Actual materials purchased 8,100 meters Actual materials used in production 7,600 meters Actual output 1,400 units What is the materials price variance for the month?

A. $8,600 Unfavorable B. $4,050 Unfavorable C. $3,141 Unfavorable D. $8,725 Unfavorable