Figure 5.4 -Refer to Figure 5.4.The Figure Above Represents the Market for the Market

Figure 5.4
-Refer to Figure 5.4.The figure above represents the market for pecans.Assume that this is a competitive market.Which of the following is true?

A) If the price of pecans is $3, the output will be economically efficient but there will be a deadweight loss.
B) If the price of pecans is $9, consumers will purchase more than the economically efficient output.
C) Both 4000 metrics and 12 000 metrics are economically inefficient rates of output.
D) If the price of pecans is $3, producers will sell 12 000 metrics of pecans, but this output will be economically inefficient.