Final answer:
Mary and John, who were involved in a workplace accident, would both likely be covered under Workers' Compensation. This insurance provides benefits to employees injured during the course of employment, and since both were engaging in work-related activities, they are usually eligible for coverage.
Step-by-step explanation:
The question pertains to who would most likely be covered under Workers' Compensation in the event of an accident involving employees during work hours.
Generally, Workers' Compensation is a form of insurance providing wage replacement and medical benefits to employees injured in the course of employment.
Given the scenario, both Mary and John are likely to be covered under Workers' Compensation because the accident occurred while they were performing work-related activities. Mary was racing, which may not be a part of her job duties, but since it was seemingly sanctioned by the presence of fellow employees, it could be argued that it took place 'in the course of employment'.
John, who was performing an indisputably work-related task by taking out the garbage, would also be covered.