9. April, Katy, and John study in the third grade. They regu…
9. April, Katy, and John study in the third grade. They regularly play a game they call “Shopping,” wherein April assumes the role of a shopkeeper, Katy assumes the role of April’s assistant, and John acts as a customer. Although they do not follow any rules, they have a script, and they play according to it. It is evident that April, Katy, and John are engaged in _____.