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: If Milo is listening to the radio and he moves closer to the radio in the room, what happens to the sound waves entering his ear? 
 Option1: they spread out less 
 Option2: they spread out more 
 Explanation: The farther the sound waves travel away from the source, the more spread out their energy becomes.

A: they spread out less
****
Q: Question: Living things with great traits should produce _____ offspring than living things with better traits. 
 Option1: more 
 Option2: less 
 Explanation: Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.

A: more
****
Q: Question: Jimbo was sailing in the ocean when he a few glaciers around his ship. The next year he sailed back to that same spot and noticed that there were many more glaciers around the ship. If there are more glaciers, what does that mean about the sea level? 
 Option1: it's lower 
 Option2: it's higher 
 Explanation: An increase in glaciers lowers sea level and a decrease in glaciers raises sea level.

A:
it's lower
****