Wilder believed the real significance of a play resided in the good use of the stage, and the way to interact and make full effort to project the story without the need for a big scenery and props; then leave the rest to the audience so they could imagine everything else.
Rain symbolizes multiple things depending on the context in which it appears, but most commonly connotes sadness, rejection or despair.
the answer to your question is D) The three categories of doughnuts are glazed, filled, and cake; they are named by their characteristics and ingredients.
