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: The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.
Question: If pressure has exerted less force on a rock and decreased it's metamorphism, would it be
Choices: A)easier to determine what the original rock was
B)harder to determine what the original rock was?
[EX A]: easier to determine what the original rock was

[EX Q]: Paragraph: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.
Question: What will happen to the amount of elastic potential energy in Jim's rubber band if he compresses it?
Choices: A)more potential energy
B)less potential energy
[EX A]: more potential energy

[EX Q]: Paragraph: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.
Question: Compared to an obese person who has never exercised, would an Olympic sprinter in perfect condition be more likely to have a heart that can, with each beat, move
Choices: A)more blood
B)less blood?
[EX A]:
more blood