B. An emperor imprisons all citizens who oppose him, ignoring laws meant.
Explanation:
Tyranny is a form of government in which unlimited power is held by one single person. Tyranny is characterized by arbitrary, unjust and oppressive rule where alienable rights of citizens and laws are not taken in consideration by the ruler, therefor; an emperor who imprisons all citizens who oppose him, ignoring laws meant is an exact example of a tyrannic government.
No, it is false that the United Nations Environment Program regulates the environmental policy for all countries, since each sovereign country is in charge of its on regulatory policies.