Mike watches a lot of television programs that contain violence. When he sees an older child bullying a younger one in the park, you would expect him to

A ignore it
B call an adult
C come to the aid of the child
d join in

What I've read would be he would join in D? I'm I right.

This (badly chosen) question is asking you to stereotype. I am not sure there is one right answer to this because every person reacts differently.

My brother and I played cowboys and Indians/cops and robbers and watched that kind of TV show all the time when we were in elementary school -- yet neither of us is violent, neither would join in.

I don't know what the right answer is -- I'm not sure there is one.