Why did the feudal system develop?A. more and more people in Europe were demanding political rights, and the feudal system spelled out the rights each class of people should have. B. Europeans wanted to curb the power of church, and the feudal system made it clear that nobles would write local laws, organize courts, and collect taxes. C. vikings threatened everyone, but kings had lost power to protect the people, so nobles offered to protect property and local people by offering land in exchange for loyalty and military service. D. As cities in Europe Grew, nobles realized they were loosing their importance in society. The feudal system guaranteed that the nobles would remain at the top of the political and social piramos.

C.vikings threatened everyone, but kings had lost power to protect the people,so nobles offered to protect property and local people by offering land in exchange for loyalty and military service.

Explanation: took the test

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.