The answer should be B "It appeals to readers' sympathy by describing difficult times." The mother and her family a going through a tough time right now because she clearly states that the mother is living off of frozen veggies, and birds the children kill. She just sold the tires off her car to provide for her children so they did not go without she does not have a lot of money and is currently living in a tent. The mood is to create sympathy for the family.
national geographic Is a good website to use and wikipedia but I think that will be more confusing cause of the small words they use and half of it I dont understand it