The police do not become powerful at the expense of citizens' rights, is the right answer.
Explanation:
Amendment Fourth of Constitution of the United States is part of the Bill of Rights. This amendment prevents irrational searches and seizures. Moreover, it places obligations for circulating warrants: warrants must be dispensed by a magistrate, verified by probable cause, established by affirmation or oath, and must expressly represent the area to be examined and an individual or items to be taken.
The seven exceptions to the Fourth Amendment are exigent circumstances, search incidental to a lawful arrest, consent, plain view, caretaker function, inventory/impounded vehicles and motor vehicle.
Answer: C. High crop yields on fertile floodplains permitted more people to pursue non-farming activities. d People stopped conducting warfare on neighboring groups.