A firm uses a backflush system and lean process costing (as described in the textbook). The firm values inventory using direct costing. At the beginning of April, the firm has $0 in all inventory accounts. Actual and budgeted costs are the same. On April 4, the firm purchases 200 units of raw materials for $25,000. It uses 180 units of these raw materials, leaving $2,500 of raw materials in the warehouse at the end of April. During the month of April, the firm incurred $14,500 of direct labor costs and $5,000 of variable overhead costs. The firm also incurred $15,000 of fixed overhead costs. The total number of units completed and in process is 1,000, and 50 of those units are still in process. If you searched for the RIP account balance on May 15, what would the search show? (Round rates and balance amounts to the nearest cent if necessary.) a. $0 balance b. $2,225 balance c. $2,975 balance d. $1,250 balance