Question

Which of the following might be presented as evidence by someone arguing that the United States won the Space Race?

landing a man on the moon
launching the first satellite
building the International Space Station
inventing the computer

Answer 1

Likely: landing a man on the moon — the clearest, classic proof (Apollo 11 was the decisive Cold War-era achievement).
Arguably: building the International Space Station — it can be used to show long-term U.S. leadership in space cooperation after the Cold War.

Not evidence: launching the first satellite (that was the Soviet Sputnik) and inventing the computer (not a Space Race accomplishment nor a U.S.-only invention).