#6 tripped me up because when I read answer choice D, I read 'the deteriorating conditions of society' as referring to the deteriorating physical conditions, hinting at a drought, which is why I had thought it to be the most strengthening. I guess it seemed to be referring to the social conditions, though.

When answering these necessary assumption questions, would you suggest beginning with negating the answers to determine if it may be the answer, or only negating those which seem to be relevant or correct after eliminating incorrect answers?

@charlenehansen I am also struggling as to how A was wrong, and how to be able to answer these questions quickly with not choosing the reverse of the correct answer.