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).

Input: Consider 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: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass attaches, allowing the rocket to go 
 Choices: A)higher 
B)lower

Output: lower


Input: Consider Input: Paragraph: Faster-moving water has more energy.
 Question: If Jim decreased the speed of water flowing out of his bathroom tap, what would happen to the amount of energy being transferred by the water? 
 Choices: A)would increase 
B)would decrease

Output: would decrease


Input: Consider 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: Penny removed salt from her cup of water and noticed the water got _____. 
 Choices: A)thicker 
B)thinner


Output: thinner