-3 Walsh Corporation has provided the following information: ed ut of 2 question Cost per Unit Cost per Period Direct materials $ 6.35 Direct labor $ 3.75 Variable manufacturing overhead $ 1.50 Fixed manufacturing overhead 15,000 Sales commissions $ 0.50 Variable administrative expense $ 0.55 Fixed selling and administrative expense 4,500 $ $ If 4,000 units are sold, the total variable cost is closest to: Select one: O a. $66,200 O b. $58,400 O c. $50,600 O d. $46,400