All the children were having fun, the game of tag was a great choice of what?\nOptions:\n- effort\n- exercise\n- relaxing\n- playing around\n- activity
Let’s work this out in a step by step way to be sure we have the right answer.
activity
Tag is a children's game in which one chases the rest, and anyone who is caught then becomes the pursuer.

Activity means a thing that a person or group does or has done.

.

So, the final answer is activity