Suppose an oligopoly consists of two firms. Firm A lowers price and Firm B responds by lowering its price by the same amount. If average costs and industry output remain the same, which of the following will occur?
A. The profits of the two firms will decrease.
B. The profits of the two firms will remain the same.
C. The profits of the two firms will increase.
D. Barriers to entry will come tumbling down and new firms will enter.