Fact 1: Mammals have a layer of fat under the skin to help insulate the body. Fact 2: All humans are mammals. Given the two facts above, what has a layer of fat under the skin to help insulate the body?

pick from the following.
(i). goats
(ii). snakes
(iii). hamburgers
(iv). animals
(v). humans
(vi). rabbit
(vii). bears
(viii). fur
The answer is:
(v).