The pseudostratified ciliated columnar epithelium of the trachea _ .

A) lines the airway that is held open by C-shaped cartilaginous rings
B) sweeps the mucus toward the throat, where it can be expelled or swallowed
C) produces mucus to trap dust particles, bacteria, and other debris
D) produces mucus to trap dust particles, bacteria, and other debris; sweeps the mucus toward the throat, where it can be expelled or swallowed; and lines the airway that is held open by C-shaped cartilaginous rings