Answer:
D
Step-by-step explanation:
From the excerpt, you can directly extract some information to help you: "...to control the destructive flood waters in the Tennessee River and Mississippi River Basins..."
Based on this information, you can look at the answer choices to see that D matches.
Note: while C is correct in that it is one of the reasons the Tennessee Valley Authority was enacted, it is not shown in this excerpt. Thus, D is correct and C is not.