Which best defines a topic and position in an argumentative essay about sports?

A. Some kids like school sports because they are very athletic, and other kids do not like sports.
B. Sports provide kids with an opportunity to exercise, and they help students feel like part of a team.
C. I feel school sports are an important part of learning because they teach hard work and build friendships.
D. I understand why some people do not like sports, and I also see why some students really love sports.