1. The Benchley Company uses metal grates when assembling appliances. Information as to balances on hand, and requisitions of the grates is given in the following table. Transaction Number of Balance of Units Date 150 450 120 210 225 195 165 225 210 $2.80 $3.10 Jan. 1 Beginning balance Jan. 24 Purchased Feb. 8 Mar. 16 Issued Jun. 11 Purchased Aug. 18 Issued Sep. 6Issued Oct. 15 Purchased Dec. 29Issued If a perpetual inventory record of the metal grates is maintained on a FIFO basis, what costs are assigned to the 150 units 150 600 480 270 495 300 135 360 150 Issued $3.24 $3.50 in ending inventory? a. 150 units $3.50 b. 15 units @ S3.50 and 135 units @ S3.24 c. 150 units @ $2.80. d. 15 units @ $3.50 and 135 units @ $2.80