Which central idea expresses a viewpoint? (I NEED HELP QUICK >.<)

A. There are three neighborhood pools, two playgrounds, and one library in our community.
B. A teen center would be a great addition to the community center, providing teens with a place to go.
C. Teenagers are discouraged from loitering in public places, such as store fronts and parking lots.
D. Skateboarding is prohibited at the playgrounds as a safety precaution for young children.