Police power is:
a. the states' authority to conduct searches under the fourth amendment.
b. the states' power to pass laws to promote public welfare and health and safety .
c. the states' authority to bypass the fifth amendment.
d. government agencies' authority to conduct a search of private property at any time.

The answer would be B) The states’ power to pass laws to promote public welfare and health and safety.

Reasoning:

The definition of police power is; “In United States constitutional law, police power is the capacity of the states to regulate behavior and enforce order within their territory for the betterment of the health, safety, morals, and general welfare of their inhabitants.” Closest answer choice to this would definitely be, B) The states’ power to pass laws to promote public welfare and health and safety.