Which Statement Correctly Describes Air Movement Along the Respiratory Tract

Multiple Choice

Which statement correctly describes air movement along the respiratory tract?

A) Cilia and hairs in the bronchi help to screen out foreign particles in the air.
B) Food and air both enter through the larynx, presenting a potential danger to respiration.
C) Air reaching the lungs has been warmed to body temperature by passage through the nose and upper respiratory system.
D) The epiglottis is the passageway through the larynx by which air enters the trachea.
E) The bronchi serve as passageways into the trachea.