The automobile industry in rhizo, a small developing country, has a monopolistic market structure. crimson inc., the only player in this industry, has been specializing in the production of hatchback cars for almost five years and earns huge profits by selling them at high prices. the company's sales revenue has increased on average by 11 percent annually since it began its operation. however, in an attempt to promote competition, the government of rhizo has recently announced tax concessions for new firms willing to enter this industry. the sales team at crimson forecasts that even if new firms enter the market, its sales will still increase by 8.5 percent next year. crimson's ceo, mariadan, therefore feels that the firm need not worry too much about the competition from new players. roger woods, an industryanalyst, meanwhile claims that crimson must introduce some variety in its product line to maintain overall profit margins.

which of the following, if true, will strengthen roger's view?

a. crimson has recently appointed graham jones, a famous soccerplayer, as its brand ambassador.
b. other industries that the government opened up in the past did not attract much foreign direct investment.
c. crimson enjoys cost advantages over rival firms.
d. an increase in the average family size in recent years has created a demand for bigger cars.
e. crimson sells 60 percent of its products in the international market.