The best choice for you will be option A because in volleyball it is illegal to hit the ball twice touch the net and to go underneath so the only legal move to to spike the ball.
Determine the consequences of your decision
think through so the possible outcomes of your decision
No, only doing crunches will not help. You will have to do a variety of excercises to help lose weight around the belly. A good example of excercises that will help you lose weight would be cardio excercises.