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: As greenhouse gases increase, changes will be more extreme.
 Question: Reid notices changes in the weather and temperature from 100 years ago. This likely was caused by _____ greenhouse gas levels. 
 Choices: A)increased 
B)decreased
Output:
increased