Robyn's Retail Had 400 Units of Inventory on Hand at the End

Robyn's Retail had 400 units of inventory on hand at the end of the year.These were recorded at a cost of $15 each using the last-in,first-out (LIFO) method.The current replacement cost is $13 per unit.The selling price charged by Robyn's Retail for each finished product is $22.In order to record the adjusting entry needed under the lower-of-cost-or-market rule,the Merchandise Inventory will be ________.

A) debited by $5,200
B) credited by $5,200
C) debited by $800
D) credited by $800