Clarks Inc., a shoe retailer, sells boots in different styles. In early November the company starts selling SunBoots to customers for $70 per pair. When a customer purchases a pair of SunBoots, Clarks also gives the customer a 30% discount coupon for any additional future purchases made in the next 30 days. Customers cant obtain the discount coupon otherwise. Clarks anticipates that approximately 20% of customers will utilize the coupon, and that on average those customers will purchase additional goods that normally sell for $100. I'm only having problem with question 1 and how many performance obligation are in a contact to buy a pair of sunboots?