instruction:
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.
question:
Question: John was weighing some materials in his science lab. He observed that as objects had lower density, the heaviness of the objects 
 Option1: Increased 
 Option2: Decreased 
 Explanation: A given volume of a denser substance is heavier than the same volume of a less dense substance.
answer:
Decreased


question:
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.
answer:
better?


question:
Question: When observing reactants and their particles, Shane decreases the temperature they're exposed to, noting that they now move 
 Option1: faster 
 Option2: slower 
 Explanation: At higher temperatures, particles of reactants have more energy, so they move faster.
answer:

slower