Answer:
C. 30,210
Explanation:
Cost of merchandise sold = cost of merchandise purchase - cost of merchandise left in inventory
= Purchases  of $32,000 - Purchases discounts  of $960 - Purchases returns and allowances  of $1,200 + Freight In  of $1,040
- ( Merchandise inventory  at  September 30  of $6,370 - Merchandise inventory September 1  of $5,700)
= 32,000- 960- 1,200+1,040 - 670 = 30,210