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

A couple of people are standing at the foot of a table. They are engaged in a game of beer pong. they

Select from the following.
[1]. are both wearing black clothes.;
[2]. serve and screw the balls back and forth.;
[3]. throw the balls and try to get them to land in the cups.;
[4]. are playing darts, throwing darts, and throwing the cups to the counter.;
The answer is:
[3].