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: 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 less pollution if it were running on 
 Choices: A)its diesel engine 
B)its battery backup power?
[EX A]: its battery backup power?

[EX Q]: Paragraph: A thinner wire is more difficult for electrons to move through than a thicker wire.
 Question: If you use a thin piece of wire then electrons move 
 Choices: A)easier 
B)harder
[EX A]: harder

[EX Q]: Paragraph: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
 Question: Asa is running in a race and his body temperature increases. His skin's blood vessels _____ in diameter. 
 Choices: A)increase 
B)decrease
[EX A]:
increase