Lets recall: what does Sedentary mean?
Sedentary means an activity that you do sitting down with out any form of exercise.
So looked at our answer choices...
1.) Jogging ( NOT sitting down)
2.) playing video games (sitting down)
3.) playing basket ball ( NOTsitting down)
4.) riding your bicycle (NOT sitting down)
So this means our answer is..
2.) Playing video games!
Good Luck! :)