What can live in salt water?
Options:
- (A) otters
- (B) spider
- (C) amoeba
- (D) clam
- (E) alligator
- (F) ducks
- (G) goldfish
- (H) voles OK. Let's think hard:
Mollusks live in most terrestrial, freshwater, and marine habitats. Mollusks tend to be shore-dwelling creatures. Clams tend to be shore-dwelling creatures and can live in both sea and freshwater.
So, the final answer is (D).