You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Input: Consider Input: Question: If the people in Mary's country start to create less greenhouse gases, what will happen to the possibility that changes may occur?
Option1: increase
Option2: decrease
Explanation: As greenhouse gases increase, changes will be more extreme.

Output: decrease

Input: Consider Input: Question: A hydrocarbon that halves its carbon atoms will cause an _____ in the amount of isomers.
Option1: decrease
Option2: increase
Explanation: As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.

Output: decrease

Input: Consider Input: Question: Michael is studying the air quality of various cities. He finds that there are many more pollutants in the air in Mexico City, than there are in the air of Chicago. Therefore, the air quality will be higher in
Option1: Chicago
Option2: Mexico City
Explanation: More pollutants mean poorer air quality.
Output: Chicago