The answer is a is the answer
I think you did really good this was a really eye opening topic really the only thing I have to say is you might want to change to summarize to to conclude it sounds more appealing other than that I don't really have any corrections.
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: B
Explanation: A person who behaves in an autocratic way. A ruler with total power over a country, typically one who has obtained control by force. (In ancient Rome) a chief magistrate with absolute power, appointed in an emergency.