A company purchased $3,700 of merchandise on July 5 with terms 3/10, n/30. On July 7, it returned $410 worth of merchandise. On July 8, it paid the full amount due. The amount of the cash paid on July 8 equals: O A. $410 O B. $3,179 O C. $3,191 O D. $3.290 O E. $3,700