The following are the approximate U.S. market shares of different brands of soft drinks: Coke = 44.9% PepsiCo = 25.9% Keurig/Dr. Pepper = 21.1% Refesco = 2.5% National beverage = 3.1% All other brands = 5.4% a. Compute the Herfindahl for the soft drink market. b. Suppose PepsiCo acquired Keurig/Dr. Pepper. Compute the post-merger Herfindahl. What assumptions did you make? c. Suppose that competition authorities were concerned to see the Herfindahl value you computed in (b) and were considering preventing the merger. What change in the market definition might PepsiCo propose to allay the competition authority concerns?