Assume the market shares of an X number of largest firms in an industry are 12 percent each. The HHI=720. How many firms are in the industry? Comment on the concentration of this industry. * O A) The X = 60. This number suggests a relatively unconcentrated industry O B) The X = 60. hihis number suggests a relatively concentrated industry C) The X = 5. This number suggests a relatively unconcentrated industry D) The X = 5. This number suggests a relatively concentrated industry