Answer:
C.
Step-by-step explanation:
The Space Race was a term used to describe the competition between two the superpower–the USA and the Soviet Union. The Space Race between the two countries began during the Cold War.
The event that marked the beginning of the Space Race is the launch of Sputnik by Russia in space. With the launch of Sputnik on 4th October 1957, in space, the Space race between the two superpowers started. This is known as the Sputnik crisis. The crisis was also significant in the creation of NASA.
Therefore, option C is correct.