Final answer:
The three components that must be included in the plan for work comp patients are medical treatment, rehabilitation, and a return-to-work plan. This is supported by workman's compensation insurance, which employers contribute to and which provides benefits for employees injured on the job.
Step-by-step explanation:
The correct answer to what must be included in the plan for all work comp patients is 1) Medical treatment, rehabilitation, and return-to-work plan. This encompasses immediate medical care following an injury, a rehabilitation process to assist the employee in recovering, and a structured plan for reintegrating them back into the workplace once they are able.
Other related topics include the responsibility employers have to provide employee insurance (mainly health), retirement plans, and compliance with legally required benefits like Social Security, unemployment, workers' compensation insurance, and Medicare, as per various sources like the Bureau of Labor Statistics.