A ________ is an instrument used to examine the bronchi.

A) spirometer
B) laryngoscope
C) bronchoscope
D) respirator

A bronchoscope is a medical instrument used to examine the bronchi, which are the tubes that carry air into the lungs. It is typically passed through the nose or mouth and down the throat to the lungs, allowing doctors to visualize the air passages and potentially take biopsies or remove obstructions. A spirometer is a device used to measure lung function, a laryngoscope is used to visualize the larynx (voice box), and a respirator is a machine that helps patients breathe.