I think that the subject of the excerpt is c) Mathilde's discontent with her humble lifestyle because she compared her life to a rich one, one she felt that she was meant to have.
Cushion: Have you ever had a

job?
Chew: I can't

this.
Bushel: Their are dry measures of

.
Bamboo: I have seen a

forest.
Mildew: Are their any signs of

?
Soothe: I have

someone before.
Barefoot: I was running around outside

.
Renewal: Why is their a

in war?
Answer: A
Explanation: I feel like it was the least important one because the rest explain about how difficult it is to harvest it or stuff like that