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: When a rubber band is relaxed, its elastic force 
 Option1: increases 
 Option2: decreases 
 Explanation: The elastic force increases the more the material is stretched or compressed.

A: decreases
****
Q: Question: As the train approached the intersection and blew its horn, expanding the wavelengths of the sound, did the frequency of the horn 
 Option1: increase 
 Option2: decrease? 
 Explanation: This means that as wavelengths get shorter, more waves move past a particular spot in the same amount of time.

A: decrease?
****
Q: Question: As the Earth and sun rotate around each other, the force of gravity as the Earth moves away becomes 
 Option1: More 
 Option2: Less 
 Explanation: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.

A:
Less
****