Todd saw three animals. He wrote down some facts about each. Facts About Animals Observed

Fact: Animal 1 Animal 2 Animal 3
1 It is small. It is medium. It is small.
2 It is furry. It has feathers. It has scales.
3 It is brown. It is red. It is green.
4 It is always moving. It moves a lot. It sits still a lot.
5 Its tail is bushy. Its tail is long. Its tail is smooth.
6 It has 4 legs. It has 2 legs. It has 4 legs.

Todd wants to classify the animals into groups, based on body covering. Which fact will Todd find most useful for doing this?
A. fact #3
B. fact #2
C. fact #4
D. fact #6