ABC Corporation had the following amounts, all at retail:

Beginning inventory $ 3,600 Purchases $145,000

Purchase returns 6,000 Net markups 18,000

Abnormal shortage 4,000 Net markdowns 2,800

Sales revenue 77,000 Sales returns 1,800

Employee discounts 1,600 Normal shortage 2,600

What is ABC's ending inventory at retail using the conventional retail method?

A) $76,000 B) $77,600 C) $78,400 D) $74,400