Final answer:
Clinical instructors are a major contributor to the faculty shortage in healthcare professions due to the extensive education required, leading to a lower supply of highly trained professionals.
Step-by-step explanation:
The question relates to the factors contributing to the faculty shortage in healthcare education. Clinical instructors are a major contributor to the faculty shortage. This is largely because healthcare professions require extensive education and training, which can lead to a lower supply of highly educated professionals such as PhD holders, specialists like cardiologists, and, in the context of this question, clinical instructors for nursing. The labor market for nursing and other healthcare professionals demonstrates this principle well, as more education often results in fewer individuals choosing that path, contributing to a shortage in certain sectors of healthcare education.