What components make up the respiratory system?

The correct answer focuses on the essential components of the respiratory system that play a critical role in facilitating breathing and gas exchange. The lungs serve as the primary organs involved in the exchange of oxygen and carbon dioxide. Ribs, part of the thoracic cavity, protect the lungs and assist with the mechanics of breathing by allowing for expansion and contraction. The abdomen plays a role in respiratory processes, particularly through the diaphragm, which is a key muscle located at the base of the thoracic cavity that helps regulate inhalation and exhalation.

This grouping is significant as it encompasses the structures pivotal for respiration. While other options may mention various parts of the respiratory system, they do not collectively represent the major components necessary for the respiratory function as clearly as this selection does. For example, vocal folds and thoracic muscles do contribute to the respiratory system but are not as central to the gas exchange process as the lungs and ribs.