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: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
 Question: John's town used to have lots of water, back when there were only a few hundred people. However, now that the town holds several thousand people, the water availability is 
 Choices: A)scarce 
B)plentiful
Example output: scarce
Example explanation: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.
Q: Paragraph: In the larger container we will still have the same number of gas particles, but now they are filling a much larger space.
 Question: If Jim has a container of hydrogen gas that is 50 liters in volume and he moves the gas to a container that is 40 liters in volume, what happens to the density of the gas? 
 Choices: A)increases 
B)decreases
A:
increases