I would say A)...
The topic of three styles of dog training can be broken down into many sub-categories. A topical pattern of organization organizes the information into subtopics.
Answer:
there should be a comma after vacation
Answer:
The narrator sees that one path is overgrown and clearly not used very often. He thinks that this path is a better choice and decides to take the less desirable path. He chooses it because fewer other people have seen it or experienced it.
Explanation:
To make something less confusing or to ake clearer