The answer is B. Celts.
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Celts believed that collecting heads after a battle was one of the greatest honors. Heads were their trophies.
He was an industrialist and philanthropist. He got his fortune in the steel industry by creating the Carnegie Steel Company and he revolutionized the way steel is produced in the U.S.
The architecture style is different. romanesque churches came first. they were bulky, strong and had really thick walls. their windows were regular roman arched shapes. they usually have lower ceilings and not much light inside.
Gothic cathedrals came later. they have pointed arches, lots of tall windows for light stained glass and flying buttresses to help support the higher and thinner walls.
Reform means the improvement or amendment of what is wrong or currupt.
Answer: Pope Urban II launches the Crusades by calling all Christians in Europe to war against Muslims in order to reclaim the Holy Land.