Ring Corporation manufactures jeweled cell phone cases. The following materials standards have been established for the jewels used to decorate the cell phone cases. Standard quantity per case (grams) Standard Price (SP) per gram of jewels 4.5 $3.75 The following data relates to the production of the cell phone cases during June: Actual jewels purchased and used (grams) Actual cost of jewels purchased 1,500 $4,500 Actual number of cases produced 500 What is the materials price variance for jewels in June? A. $5,625 unfavorable B. $5,625 favorable OC. $1,125 unfavorable OD. $1,125 favorable