Final answer:
A Chiropractor is the licensed professional most likely not able to own shares in a PT corporation because chiropractic care is a distinct profession from physical therapy. Laws on professional corporation share ownership limit shareholding to those within the same or related professions. The correct option is D.
Step-by-step explanation:
The question pertains to the regulations on ownership of shares in a Physical Therapy (PT) corporation by licensed professionals. In most jurisdictions, there are specific requirements about who can own shares in professional corporations, which are often limited to those within the same profession or related fields.
Given the choices A) Podiatrist, B) RN (Registered Nurse), C) Speech pathologist, and D) Chiropractor, the licensed professional most likely not able to own shares in a PT corporation would be a Chiropractor. Chiropractic care is a separate profession from physical therapy, with different educational paths and scopes of practice.
The other listed professions, such as podiatrists, registered nurses, and speech pathologists, might be able to own shares since they may work closely with or within the scope of physical therapy services, depending on the specific laws of the state or country.
Therefore, the correct option is D.