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: A small nation decided to lower its production capabilities and shut down several large factories. Would the river next to the factories have 
 Option1: more hazardous waste 
 Option2: less hazardous waste? 
 Explanation: Nations that have more industry produce more hazardous waste.

A: less hazardous waste?
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Q: Question: Megan had two charged metal balls that she was analyzing. If she decreases the charge of the balls, the electrostatic force between them 
 Option1: decreases 
 Option2: increases 
 Explanation: The more charged the objects are, the stronger the electrostatic force between them.

A: decreases
****
Q: Question: The sun exerts gravitational force on all the planets, which has a higher gravitational force 
 Option1: earth 
 Option2: mars 
 Explanation: The further objects are away from each other, the smaller the gravitational force.

A:
earth
****