Both air and food travel through which part of the body?

The pharynx is the correct answer because it serves as a shared passageway for both air and food. Located behind the nasal cavity and mouth, the pharynx connects to both the trachea (which leads to the lungs for air) and the esophagus (which leads to the stomach for food). During the act of swallowing, the pharynx plays a vital role in directing food to the esophagus while simultaneously closing off the trachea to prevent food from entering the respiratory system.

The other options, while related to either the respiratory or digestive systems, have more specific functions. The trachea is solely responsible for transporting air to and from the lungs, the esophagus is specifically for the passage of food from the throat to the stomach, and the larynx is primarily involved in sound production and protecting the trachea against food aspiration. Thus, none of these options share the dual function of transporting both air and food as the pharynx does.