Answer:
D) inseparability
Explanation:
Inseparability of services refers to fact that consumers always associate the service with the deliverer of the service, and they cannot separate them. The service provider is considered a part of the service being provided.
For example, a doctor provides health care, but it is impossible to separate the service being provided, health care, from the doctor himself. When we are sick we do not say "I must go get a health care service", we say "I need to see a doctor".