D. I don't know if that is what your teacher will agree with but in my own personal research I have found that to be very effective.
3 times, however, the same team member cannot touch the ball twice consecutively. {if the sport you're talking about is volleyball}
There are many, but some of the bigger ones would be the cause of weight gain. This is because the excess gets converted into sugar and fats, which can lead to cancer cell growth.