This is a test of commonsense with single/multi-choices. Complete the next sentence:

A group of people play water volleyball in a indoor pool with a few onlookers on the sidelines. a yellow volleyball

Available choices:
[-] is thrown between people in a pool.;
[-] player drops the ball and pushes her opponent across the net.;
[-] player steps on the volleyball court and swings at the yellow ball and hits it into the net.;
[-] in the locker room is played by a person that is swimming after the ball.;
The answer is:
is thrown between people in a pool.