Question

Which event occurred during the Space Race?

NASA was established.
The International Space Station was built.
The Soviet Union launched Salyut.
The United States launched Skylab.

Answer 1

NASA was established.

It was created in 1958 during the Space Race (the ISS was built decades later; Salyut (1971) and Skylab (1973) did occur later in the Space Race period but the clearest single-event answer is NASA's establishment).