Q: Fact 1: An aquatic animal requires great amounts of water to survive. Fact 2: Beavers are primarily aquatic animals. Given the two facts above, what's one thing beavers require to survive?

pick from the following.
a). kinetic energy.
b). Giardiasis.
c). the looseness of soil.
d). Great amounts of water..
e). living things.
f). American black bears.
g). Aquatic animals.
h). sense organs.
A:
d).