The restaurant worker's earnings closely resemble that of an employee working on commission plus salary.
Commission is additional compensation that's earned based on job performance.
It is an extra payment that is accrued during the course of work and are paid in addition to a base salary.
Hence, the restaurant worker's earnings closely resemble that of an employee working on commission plus salary.
Therefore, option D is the correct answer.
Learn more about commission here: https://brainly.com/question/26111961