Make sure you do not use the exact same thing... I recommend you do this "Expiriment" on your own! :) But I hope this helps!
Tiny hair cells inside your inner ear help you hear. They pick up sound waves and change them into the nerve signals that the brain interprets as sound. Hearing loss occurs when the tiny hair cells are damaged or die. The hair cells DO NOT regrow, so most hearing loss caused by hair cell damage is permanent.
Do your best do all easy questions first stay calm and you can do it
Discovery, research, and interviewing
I believe the answer is B.