I think oil too
Explanation:
because its what everyone fights for but not too sure
D. William the Conqueror defeated King Harold and established Norman rule over England.
1066 is when William the Conqueror (the french duke of Normandy) first began the Norman conquest of England. It was at the Battle of Hastings that he defeated The Anglo-Saxon King Harold II. William the Conqueror would then be the first Norman King of England.
The answer is: C
This is because the graph indicates the sharp decline of the rural population, due to in large part to the increase in urbanization and the ever-growing industrialization of the United States throughout the decades.
As such we can analyze that, as the years go by the population trends to move to urban areas in place of rural ones.