As Hearing Takes Place, an Electrical Potential Is Set Up

Multiple Choice

As hearing takes place, an electrical potential is set up, sending nerve impulses to the brain. What actually causes the electrical potential to be formed?

A) Bending of the hair cells in the organ of Corti by the basilar membrane.
B) Contact between the hammer and the anvil.
C) Friction between the basilar and tectorial membranes.
D) Passage of the cochlear fluid through the oval window.