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).

[Q]: Paragraph: As the Universe expands, galaxies move further and further apart.
 Question: When a city expands the distance across the city 
 Choices: A)decreases 
B)increases
[A]: increases


[Q]: Paragraph: The closer together the particles in a longitudinal wave are, the greater the amplitude.
 Question: If Mona creates a longitudinal wave and decreases the distance of the particles in the wave, what happens to the amplitude of that wave? 
 Choices: A)increases 
B)decreases
[A]: decreases


[Q]: Paragraph: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.
 Question: When it gets cold out what happens to our blood flow? 
 Choices: A)decreases 
B)increases
[A]:
decreases