Refer to Exhibit, "Management Certifications at Groupon." Comment on the fact that the certification discusses management's responsibility regarding internal controls, and yet the 8-K disclosure notifies the users of Groupon's financial statements that the company has a material weakness in its internal controls. Access Yahoo finance or another similar online source for historical stock prices. What was the stock price and volume during the period March 26 to April 2, 2012 (the period in which the restatement and internal control material weakness disclosure was made)? What are your thoughts about the change in the stock price and volume?