@wlin4023,
												Stop asking other people to do your homework. 
 It should be clear that the question isn't seeking a simple "either/or" answer, but, rather, an insight into the topic questioned:   
You might have an opinion about the quantity of Aristotle's categories; but it is far more important that you show your understanding of the grounds upon which Aristotle based his categorical distinctions...your opinions on the subject are secondary.