What is the greatest significance of the Norman conquest a England
b England became more European
c England built castles
d England fell to the vikings

 A) England become more Scandinavian.

Explanation: Norman Conquest, the military conquest of England by William, Duke of Normandy, primarily effected by his decisive victory at the Battle of Hastings (October 14, 1066) and resulting ultimately in profound political, administrative, and social changes in the British Isles. The Norman Conquest changed the face of England and Western Europe forever: The Norman Conquest broke England's links with Denmark and Norway and connected the country to Normandy and Europe. William got rid of all the Saxon nobles and imposed the feudal system on England.

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your answer would be (a)