Which of the Following Is Not an Example of How

Which of the following is not an example of how to reduce spectator violence associated with sport?

A) Keep fans happy by providing plenty of entertainment and alcoholic beverages.
B) Attendance at athletic events should be promoted as a family affair.
C) Acts of spectator aggression must be quickly and severely dealt with.
D) Media should not attempt to promote friction or hatred between two teams prior to competition.