Answer: A) developed as a result of the tensions between the US. and the Soviet Union.
Explanation:
Cold War was the opposition that grew after World War II between the United States and the Soviet Union.
The Soviets had established leftist governments in the part of eastern Europe liberated by them. The United States worried about the Soviet domination of eastern Europe and their goal of spreading communism worldwide.
Humankind owns much to the brave and daring work men of science like Galileo Galilei, Nicholas Copernicus and Isaac Newton. They made observations and develop scientific knowledge despite its disagreement with the official dogmas of the Roman Catholic Church.