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: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
 Question: If a herd of elephants and humans are living happily in a forest and the humans then decide to move away, what happens to the elephants? 
 Choices: A)they decrease in number 
B)they increase in number

A: they increase in number
****
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: If blood volume in the body decreases, blood pressure decreases.
 Question: Rick gained a lot of blood after cutting himself. His blood pressure rapidly 
 Choices: A)increases 
B)decreases

A:
increases
****