Given that competitive markets are defined by 3) easy entry and exit from the industry, the cable industry can be described as competitive because Select one: @ a. the fixed costs to compete in the cable industry are high and the profit margins are low, so it is easy for new firms to enter a particular city and compete. O b. itis prohibitively expensive for a competing firm to acquire and install a competing set of coaxial or fiber-optic cables to every home in a city, so they exit quickly from the market. O c. it costs almost nothing for someone to set up a website that provides competing entertainment options (e.g., YouTube videos), so entry costs are very minimal. O d. the government monopoly makes it very easy for cable companies to keep other television service companies out of the market