Consider the Following Cost Curves for Firm X,a Perfectly Competitive

Consider the following cost curves for Firm X,a perfectly competitive firm.
FIGURE 9- 5
-Refer to Figure 9- 5.In this industry,which one of the following is FALSE?

A) Only one firm can reach the size of output Q2.
B) If the scale of Firm X at output Q2 and price P2 is large enough that Firm X has an appreciable share of the market,Firm X will no longer be a price taker.
C) At output Q2 and price P2,Firm X is maximizing its long- run profits.
D) If the price were to fall below P2,firms would leave the industry.
E) If the price were to rise above P2,new firms would enter the industry.