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 Input:
Paragraph: The further objects are away from each other, the smaller the gravitational force.
 Question: The sun exerts gravitational force on all the planets, which has a lower gravitational force 
 Choices: A)earth 
B)mars

Ex Output:
mars


Ex 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: When water absorbs salt the water becomes 
 Choices: A)more dense 
B)less dense

Ex Output:
more dense


Ex Input:
Paragraph: Lighter, more streamlined vehicles need less energy.
 Question: A vehicle that was sleek and aerodynamic and a vehicle that was bulky were each driven the same distance over the same amount of time. Which vehicle needed to less energy to power it? 
 Choices: A)bulky vehicle 
B)sleek vehicle

Ex Output:

sleek vehicle