Final answer:
The subject of this question is Theatre. The characters in a play have the power to change the challenges set before them by the playwright or director.
Step-by-step explanation:
The subject of this question is Theatre. The student is asking about the power that the characters have to change something that the _____ had put before them. In the context of theatre, this can refer to the playwright or the director who determines the circumstances and challenges that the characters face in the play. The characters have the ability to change or overcome these challenges through their choices and actions.