I believe the answer is A.
Answer:
1. The thing that influences our purchasing choice is price for the lower class and sometimes quality for the upper class. Something they both care about is quantity which brings usually less quality to the product so it usually appeals less to the upper class.
2. The reason there's so much waste is because in some public places their are little choice in which to through away your food and other waste. Also the older generation cares less about their waste choice because they will only be on the planet for a short time longer.
Explanation: Sorry I did not have time to do 3 and 4!?!?!?!?!
The answer is
d. preventing weather events
Preventing weather events is not an advantage to tracking changes in the climate system.
I think it might be c hope it helps