Star Footwear Inc. produces casual shoes that use a leather as the main raw material. The following is the data for May related to the shoes: Standard quantity per unit of output (yards) Standard Price (SP) per yard Actual materials purchased in yards Actual cost of materials purchased Actual materials used in production (yards) Actual outputs in units What is the materials quantity variance for leather for May? 2 $9 19,500 $87,200 6,000 3,500 This question: 3 points) possible OA. $121,500 favorable OB. $9,000 unfavorable Oc. $9,000 favorable OD. $121,500 unfavorable