Correct answer choice is :
2) The Soviet Union’s surprising launch of Sputnik into Earth’s orbit
Explanation:
The Space Race leads to the 20th-century contest among two Cold War opponents, the Soviet Union and the United States, for dominance in spaceflight ability. The Space Race starts in 1957 and the U.S. and the Soviet Union are clasped into the Cold War. The Soviet Union has just begun the world's first satellite, Sputnik. Afraid of Soviet military control of space, the Americans immediately ready a rocket.
A. king george III. he takes control of the throne shortly before the causes of the revolutionary war begin
