You Have Misplaced Your Cell Phone, and You Ask a Friend

Multiple Choice

You have misplaced your cell phone, and you ask a friend to call you so you can hear its high-pitched, musical ring. Assuming the ringer is on and is loud enough to hear, what would tell your brain that the phone is somewhere directly to your right?

A) You hear the ring in your right ear but not in your left ear.
B) The ringer sounds slightly louder in your right ear than in your left ear.
C) The pitch of the ring sounds slightly higher in your right ear than in your left ear.
D) The bass notes of the ring are heard in your right ear but not in your left ear.