The Demand Curve Facing the Firm Has Been Estimated as Follows

The demand curve facing the firm has been estimated as follows: Which of the following statements about the firm's total revenue is correct?

A) If the firm sold 3 units of output,it would have revenues totaling $540.
B) If the firm sold 7 units of output,it would have revenues totaling $560.
C) If the firm increased output from 2 units to 3 units,total revenue would decline.
D) If the firm decreased output from 7 units to 6 units,total revenue would decline.
E) If the firm decreased output from 6 units to 5 units,total revenue would decline.