Definition: 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: Paragraph: Water density increases as salinity and pressure increase, or as temperature decreases.
 Question: As Cindy swam deeper into the ocean, it got darker and _____. 
 Choices: A)warmer 
B)cooler
Output:
cooler