Question

what is one thing nasa hopes to discover about venus?
a they hope to start a human settlement there.
b they hope to discover what its rings are made of.
c they hope to discover if it ever had an ocean.
d they hope to construct a solar energy farm there.

Explanation:

Venus has extreme surface conditions making human settlement and solar - energy farm construction difficult. Also, Venus has no rings. One of the scientific interests is to know if it ever had an ocean.

Answer:

C. They hope to discover if it ever had an ocean.