You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Let me give you an example: Paragraph: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
 Question: John's town used to have lots of water, back when there were only a few hundred people. However, now that the town holds several thousand people, the water availability is 
 Choices: A)scarce 
B)plentiful
The answer to this example can be: scarce
Here is why: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.

OK. solve this:
Paragraph: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.
 Question: Amy is from the Hawaii, where she used very little fossil fuels. Andy is from a poor country where they use lots of fossil fuels. The person who's country will contribute more to air pollution is 
 Choices: A)Amy's 
B)Andy's
Answer:
Andy's