Final answer:
The medical doctor who is working as a waiter is classified as employed. They are considered part of the labor force because they are working for pay as a waiter, regardless of their professional background. The term 'out of the labor force' does not apply to them.
Step-by-step explanation:
The medical doctor in question is working as a waiter, which indicates the individual is employed regardless of their original profession. The categorization of the labor force focuses on whether a person is working for pay, actively seeking employment, or not involved in job-seeking activities and without paid work. Since this doctor is currently working as a waiter, they are part of the labor force and not out of the labor force.
The concept of out-of-the-labor force applies to individuals who are not working and are not looking for work, which does not describe the situation of the doctor. Hence, the doctor is currently contributing to the workforce by their active employment as a waiter, irrelevant of their medical degree. Therefore, this doctor's employment status should be classified as employed.