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).

[EX Q]: 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 little water, back when there were several thousand people. However, now that the town holds only a few hundred people, the water availability is 
 Choices: A)scarce 
B)plentiful
[EX A]: plentiful

[EX Q]: Paragraph: More recently, the death rate has fallen because of the availability of more food and medical advances.
 Question: When the villagers are living longer, the food source is likely 
 Choices: A)great 
B)small
[EX A]: great

[EX Q]: Paragraph: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
 Question: Would a diesel powered submarine release more pollution if it were running on 
 Choices: A)its diesel engine 
B)its battery backup power?
[EX A]:
its diesel engine