Luma Inc. has provided the following data concerning one of the products in its standard cost system. Inputs Standard Quantity or Hours per Unit of Output Standard Price or Rate Direct materials 4.8 ounces $6.90 per ounce The company has reported the following actual results for the product for September: Actual output 2,100 units Raw materials purchased 10,500 ounces Actual price of raw materials $ 7.80 per ounce Actual cost of raw materials purchased $ 81,900 Raw materials used in production 10,090 ounces The raw materials price variance for the month is closest to: (Round your intermediate calculations to 2 decimal places.) Select one: A. $9,081 F B. $9,450 U C. $9,081 U D. $9,450 F Clear my choice