Which of the following is an example of the state's exercise of its police power?
a. the enactment of state criminal codes.
b. the enactment of state criminal codes and zoning laws.
c. the enactment of criminal laws, building codes, zoning laws, sanitation standards for restaurants, and regulations for the practice of medicine.
d. the enactment of criminal laws, building codes, zoning laws, and regulations for the practice of medicine, but not sanitation standards for restaurants.
e. the enactment of laws governing regulations for law enforcement only.

The answer is:  C. The enactment of criminal laws, building codes, zoning laws, sanitation standards for restaurants, and regulations for the practice of medicine

State's exercise of its power could include all types of policies that are made to improve people's standard of living and their overall safety.

This could include the creation of various types of policies that regulate businesses practice to improve consumers' condition (such as sanitation standards, and regulations for medicines), the creation both civil and criminal laws to ensure the safety of the citizens,  and clear identification on how property can be built and used  (The enactment of criminal laws, building codes, zoning laws, sanitation standards for restaurants, and regulations for the practice of medicine)

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.