Final answer:
Michigan's authority to protect the public is granted under the state's police power.
Step-by-step explanation:
The authority of Michigan to protect the public is granted under the state's police power.
Police power refers to the government's authority to regulate and promote public health, safety, and welfare. It allows the state to enforce laws, create regulations, and take actions to protect the well-being of its citizens. In the context of the question, Michigan exercises its police power to implement measures and regulations aimed at protecting the public.