Final answer:
The goal of humidification is to protect the alveoli by ensuring inhaled air is warm and moist, which prevents damage to the lungs and maintains efficient gas exchange.
Step-by-step explanation:
The primary goal of humidification is to maintain normal physiologic conditions in the alveoli (Option A). When air is inhaled, it enters through the nasal cavity, where it is warmed and humidified. These processes of warming and humidifying the air are crucial for protecting the respiratory tract, including the trachea and the lungs, from damage that could be caused by dry or cold air. Maintaining a proper level of humidity is especially important in the alveoli, as this is where gas exchange occurs, and maintaining the integrity and functionality of these structures is essential for effective respiration.