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.

[Q]: Question: After the fire of a pile of tires at the landfill was put out, the reduction of smoke in the air made the air quality 
 Option1: better? 
 Option2: worse 
 Explanation: More pollutants mean poorer air quality.
[A]: better?


[Q]: Question: If a product is stretched, elastic force will 
 Option1: increase 
 Option2: decrease 
 Explanation: The elastic force increases the more the material is stretched or compressed.
[A]: increase


[Q]: Question: Gaby is examining a particle that slowed down after she cooled some gaseous CO2. Why did the particle slow down? 
 Option1: it has more energy 
 Option2: it has less energy 
 Explanation: If the gas is cooled, the particles will move more slowly, because they will have less energy.
[A]:
it has less energy