Answer:
c. diagnostic services
Step-by-step explanation:
Diagnostic services fall in the Medicine category. They are within the careers of Diagnostics and encompass a plethora of different types of services aiming to investigate a wide range of illnesses and medical conditions that a person can have. Pathology and Laboratory Medicine, Radiology, Nuclear Medicine and others use diagnostic services.
That being said, Human Resources, Operations, and Administrative support are all careers in the Business Management and Administration field of studies.