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.
You need to give us the text
Her people and herself were the working classes, comprised of both men and women.
Think of verbs as "action words" done by the subject. The subject in this sentence is "we". What did we do? "We" "heard" and had "seen". So the verbs would be "heard" and "seen"