What animal does nothing all the time?

a. the bear
b. the cat
c. the chicken
d. the fish

it was in spanish but i translated it, so idk where to put it. i don't understand what the answer should ?

the answer is the fish, a fish can't do anything because they live in bowls and rivers

A) A bear takes care of cubs, and family, the bear also hunts.
B) A cat is very useful, cahsing and kill mice, flys, etc..
C) Chickens are not only great farm animal but also they feed humans
and
D) Fish do not do anything So D is your answer. 

The answer is b. los