QUESTION 29 As production takes place, all manufacturing costs are added to the: O acost-of-Goods-Sold account. O b. Manufacturing-Overhead account OC. Work-in-Process Inventory account. O d. Finished Goods inventory account. QUESTION 30 Selected information about Buehler Corporation's operations at high and at low levels of activity follow: Level of Activity Low High Number of units produced 25,000 30,000 Total manufacturing costs $575,000 $680.000 Direct material cost per unit $5 $5 Direct labor cost per unit S6 $6 Using the high-low method, what is the cost formula for manufacturing overhead? O a, 550,000 per period plus 521 per unit O b.550,000 per period plus 522 per unit OC $347.000 per period plus 50.10 per unit O d. 550.000 per period plus 510 per unit