How Can You Tell the Difference Between a Tuba and a Flute

How can you tell the difference between a tuba and a flute?

A) Each part of the spiral organ is sensitive to different wave frequencies.
B) The brain interprets pitches based on the strength of the sound waves.
C) Lower pitches cause the tympanic membrane to vibrate while higher pitches vibrate the vestibular canal.
D) Lower pitches activate all three bones of the middle ear, while higher pitches only activate one or two.
E) The cochlear nerve fires more frequently for higher pitches and less frequently for lower pitches.