Use the Figure Below to Answer the Following Questions

Multiple Choice

Use the figure below to answer the following questions. Figure 11.1.1
-Refer to Figure 11.1.1.The firm competes in a perfectly competitive market.If price decreases,the total revenue curve

A) does not change,but the marginal revenue curve shifts downward.
B) does not change,but the marginal revenue curve shifts upward.
C) becomes steeper.
D) rotates downward and becomes flatter.
E) no longer passes through the origin.