Instructions: 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: At higher elevations, there is less air to press on a given area.
 Question: If Mona is climbing a mountain and she moves to the top of the mountain, what happens to the air pressure pressing against her skin? 
 Choices: A)increases 
B)decreases
Output:
decreases