Ch. 10- The following materials standards have been established for a particular product: Standard quantity per unit of 6.0 meters output Standard $ 19.00 price per meter The following data pertain to operations concerning the product for the last month: Actual materials 10,200 meters purchased Actual cost of materials 201,500 purchased Actual output 1580 units What is the materials price variance for the month? OA) A) $2371 U D) $10,800 U C) $7700 U B) $16,320 U