Glen Company Uses the Perpetual Inventory System

Multiple Choice

Glen Company uses the perpetual inventory system. The company entered into the following events:
1) Purchased merchandise inventory that cost $10,000 under terms of 2/10, n/30.
2) Made payment to the supplier within the discount period.
3) Sold all of the goods to customers on account for $22,000.

What is Glen's cost of goods sold as a result of these three transactions?

A) $9,000
B) $9,800
C) $10,000
D) $21,800