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: At higher elevations, there is less air to press on a given area.
Question: When we get to the bottom of a mountain the air is
Choices: A)more dense
B)less dense

Ex Output:
more dense

Ex Input:
Paragraph: The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.
Question: Devon's cat, Fluffy, is looking for a nice warm spot to lay out in the sun. Because of how the sun heats the earth, and how some heat radiates into the air, the cat laying high up in a tree branch, rather than on the ground, would keep the cat
Choices: A)cooler
B)warmer

Ex Output:
cooler