Suppose that call options on ExxonMobil stock with time to expiration 3 months and strike price $102 are selling at an implied volatility of 26% ExxonMobil stock currently is $102 per share, and the risk-free rate is 4%. If you believe the true volatility of the stock is 28% a. If you believe the true volatility of the stock is 28%, would you want to buy or sell call options? Buy call options Sell call options b. Now you need to hedge your option position against changes in the stock price. How many shares of stock will you hold for each option contract purchased or sold (found your answer to 4 decimal places) Number of the