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).

Example Input: Paragraph: The larger the animal, the heavier the exoskeleton, making movement more difficult.
 Question: Harry has a pet walrus. Jim has a pet parrot. Whose pet has a lighter exoskeleton? 
 Choices: A)Jim 
B)Harry
Example Output: Jim

Example Input: Paragraph: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
 Question: If Milo wants to make his water saltier and begins adding salt to the glass, what happens to the density of the glass of water? 
 Choices: A)decreases 
B)increases
Example Output: increases

Example Input: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
 Question: A rocket would only be able to fly low if its mass were 
 Choices: A)higher 
B)lower
Example Output:
higher