The trachea and bronchi are provided with C-shaped cartilaginous rings which:
Give them support and prevent their collapse.
The correct option is B.
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
Option C:
Option D:
The most far within the lungs, each bronchus is further divided into five smaller, secondary bronchi that supply air to the lungs' projections.
Final answer: The trachea and bronchi are provided with C-shaped cartilaginous rings which give them support and prevent their collapse.