5. Groupon had recognized revenue for the sale of high-ticket items in late 2011. Purchasers of the Groupons have a right of return, as specified in the "Groupon Promise," prominently featured on its website. a. Assess the U.S. GAAP requirement for recognition of revenue when right of return exists, specified in ASC Section 605-15-25, in the context of Groupon's business model. b. Do you agree with Groupon's accounting? Why or why not? c. What could Groupon have done differently, and how would the financial statements have been affected