he following information applies to the questions displayed below.1 The inventory records for Radford Co. reflected the following: Beginning inventory a May 1 First purchase (a May 7 Second purchase a May 17 Third purchase @ May 23 Sales @ May 31 100 units $4.00 300 units $4.40 500 units $4.60 100 units @ $4.80 00 units $7.80 13) What is the amount of cost of goods sold assuming the LIFO cost flow method? A) $4,100 B) $4,320 C) $2,360 D) $3,600 15) What is the amount of gross margin assuming the weighted-average inventory cost flow method? A) $3,015 B) $2,412 C) $1,314 D) $2,970