Answer:
The correct option is D) the number of patients
Step-by-step explanation:
The number of patients who arrive in a hospital to get treated will determine the flow unit of the hospital. The more facilities and positive environment a hospital will have, the more will be the patients who arrive in that hospital. Hence, if we want to check how the working staff of a hospital is, we should look for the number of patients who visit the hospital. A hospital which has a positive environment and more facilities will attract more number of patients.