company manufactures boxes. it expects to sell 20,000 boxes in 2012. the company had enough beginning inventiry materials to produce 24,000 units. beginning inventory of finished units totalled 2000 with a target ending inventory of 2,500 units. the boxes sell for 3000 and the company keepsmpt work in process inventory. direct materials costs for each box total 1 dollar while direct labour is .50 factory overhead is .20 per box. how may boxes should company produce in 2012. a 19500 b 20000 c 22500 d 20500 e 24000