The Salty Chip Company includes one coupon having no expiration date with its deluxe snack pack. Upon return of 10 coupons, Salty Chip will send a silver chip dip, which costs Salty Chip $1.50 each. Past experience indicates that 30% of coupons issued will be redeemed. Salty Chip began this promotion in 2015 and sold 1,000,000 deluxe snack packs. During 2015, 90,000 coupons were received and 9,000 chip cips were distributed to customers. The December 31, 2015 balance sheet should include a liability for coupons outstanding of: . a. $180,000
b. $31,500
c. $18,000
d. $50,000