With no explanation, chose the best option from "A" or "B". Erin, who lives in an apartment with a roommate, is doing a late night gaming session and music helps her skills get into rhythm. Erin wants to do well in the game.

A: Erin puts on headphones to listen to her music on and is able to play better.
B: Erin turns up some music through the speakers and her focus is improved.
A.