Final answer:
The true statement regarding group disability plans is that they are typically written on a nonoccupational basis, meaning they usually cover disabilities that are not work-related.
Step-by-step explanation:
The question revolves around distinguishing fact from fiction concerning group disability plans. Among the given statements, the one that is true is: "The plans are typically written on a nonoccupational basis."
This indicates that these plans generally cover disabilities that are not work-related, contrary to individual plans which may cover both occupational and nonoccupational disabilities. In fact, it's common for worker's compensation to handle occupational disabilities instead.
Other statements such as individual medical underwriting for group plans, age limits on employment for disability benefits, and coverage for work-related disabilities under group plans are generally false.
Group disability plans are designed with a different structure, not requiring individual underwriting and often providing coverage past the traditional retirement age, if certain conditions are met.