If you about to go on stage and are dressed in costume you are likely about to be what?\nOptions:\n- in play\n- going to bed\n- have talent\n- teach\n- climb stairs
Let’s work this out in a step by step way to be sure we have the right answer.
in play
A play is a theatrical performance or a film.

Theatrical performances require people dressed up in costume.

.

Therefore, the answer is in play