ich firm would an economist most likely label as an oligopolist? Choose one: A. This firm is in retail. It is one of the largest and most popular wholesale beauty supply stores in the country. It competes with many rivals, and there is intense price competition. B. This firm is one of many successful pest exterminators in a small city. It competes with its rivals on price and service, but all of the firms' products are essentially the same. C. This firm is in the cell phone industry. It is not the largest seller of cell phones, but significant barriers to entry allow it to serve a number of very profitable areas. D. This firm is a grocery store in a rural town. The nearest other grocery store is 30 miles away