Answer: A) Playful.
Explanation: the mood of a character in a story is the attitude of the character towards a situation of another character. In the given excerpt from "Mending Wall" the speaker has a playful mood towards his neighbour and the situation where he was asked to build a wall, and he doesn't understand what is the point. To express his point of view he asks questions and he has a playful attitude.
I belive its the falling action.
Arthur Miller's Connections to McCarthyism. Arthur Miller had great distaste for McCarthy's investigations in the early 1950s, and he claims to have written The Crucible in 1953 largely as a reaction to this tense political climate.