Answer:
A. Significant expansion at professional level.
Step-by-step explanation:
The hospitals provide health care facilities to the public. It is crucial place where one mistake by a doctor or other staff could lead to death of a patient. The patients coming in he hospital need to be treated carefully and timely. The professional and experience will have the skills and expertise to treat the patient carefully and diagnose the problem quickly. There are increased number of professional today than in the previous years. The education has now become more common and people understand the importance of gaining technical education before practical experiments.