The setting of the play greatly affects characters as well as the plot because it determines multiple things. For starters, where a play takes place can set both mood and tone of the plot. For example, if the play took place in a forest it would see more scary as it would if it took place in a castle. To add on, characters have to adjust to whatever the setting is, additionally their mood and tone has to change along with it.
Using the context clues in the sentence. You can accurately determine the meaning of the word onerous. The sentence starts off with stating a 10 - page research project. That would most likely be tedious and hard. So the best answer choice is answer C. Difficult
