Final answer:
Group Health Insurance offers the broadest coverage at the lowest cost to the individual.
Step-by-step explanation:
The type of health insurance plan that offers the broadest coverage at the lowest cost to the individual is Group Health Insurance. Group health insurance is typically offered by an employer or an organization to a group of individuals, such as employees or members. Since the insurance company is covering a larger group of people, the risk is spread out, resulting in lower costs for the individual. Additionally, group health insurance often provides more comprehensive coverage compared to other types of plans.