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: More people also means more clearing of land for agriculture and development.
 Question: A city will grow larger when the number of people who are there 
 Choices: A)grows 
B)shrinks
[EX A]: grows

[EX Q]: 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: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass falls away, allowing the rocket to go 
 Choices: A)higher 
B)lower
[EX A]: higher

[EX Q]: Paragraph: The closer objects are, the stronger the gravitational pull between them.
 Question: Does a ball on earth have more or less gravity on it than in space? 
 Choices: A)more 
B)less
[EX A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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