B. To assure that no one person or group has too much power.
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.
What are all the choices?
Between 1066 and 1071 CE, William the Conqueror (r. 1066-1087 CE) led the Norman conquest of England, which lasted five years. The Normans were here to stay thanks to hard-fought wars, castle construction, land redistribution, and scorched-earth tactics. The Norman elite replaced the Anglo-Saxon elite and took over the country's territories, and the Church was restructured as a result of the conquest.