Can anyone help with this problem? And show how you got your answer? Thanks!

keck Co.had 450 units of product A on hand at January 1, 2016, costing $42 each. Purchases of product A during January were as follows: Date Jan. 10 18 28 A physical count on January 31, 2016 shows 600 units of product A on hand. The cost of the inventory at January Units Unit Cost 600 $44 750 46 300 48 31, 2016 under the LIFO periodic method is O A) $25,500 B) $28,200 c) $26,700 D) $24,600