I'm kind of confused as to what you're asking, but this looks like an outline to me. It's easier to see if you lay it out like this:
Introduction
I. Hook: You see them everywhere you look, sometimes out playing or other times in a house.
II. Topic sentence: three areas of information about cats.
A. Cats are very intelligent animals.
B. Cats give off tail signals.
C. Cats are territorial animals.
See? It seems like a plan for an essay, so the correct answer would be D. outlining.