Which of the following best completes the passage below?
When the products of several competing suppliers are perceived by consumers to be essentially the same, classical economics predicts that price competition will reduce prices to the same minimal levels and all suppliers' profits to the same minimal levels.
Therefore, if classical economics is true, and given suppliers' desire to make as much profit as possible, it should be expected that
in a crowded market widely differing prices will be charged for products that are essentially the same as each other
as a market becomes less crowded as suppliers leave, the profits of the remaining suppliers will tend to decrease
each supplier in a crowded market will try to convince consumers that its product differs significantly from its competitors' products.
when consumers are unableto distinguish the products in a crowded market, consumers will judge that the higher-priced products are of higher quality
suppliers in crowded markets will have more incentive to reduce prices and thus increase sales than to introduce innovations that would distinguish their product from their competitors' products
分析：典型的直接推导补充结论型的正向逻辑题目。利用我们原命题和逆否命题等价这个基本逻辑原理可以直接得出结论。原命题说essentially the same推出minimize price and profit, 那么在原命题为真的情况下给出maximize the profit这个前提我们自然可以得到essentially differentiate这个结论。所以答案选择C！