You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Paragraph: The farther the sound waves travel away from the source, the more spread out their energy becomes.
 Question: If Milo is listening to the radio and he moves to the far end of the room, what happens to the sound waves entering his ear? 
 Choices: A)they spread out less 
B)they spread out more
they spread out more