Which portion of the space race did the united states complete before the soviet union? launching a manned satellite landing a man on the moon launching an unmanned satellite landing a man on mars

The correct answer is "landing a man on the moon."

Before the US landed on the moon, the Soviet Union beat them in several different advances including having the first satellite to be launched into space. This satellite was known as Sputnik.

However, the US was not willing to be second best to the Soviet Union. That is why President John F Kennedy made it a goal to land a man on the moon before the end of the decade (1960's).

This mission was accomplished thanks to the Apollo 11. This American made spaceship allowed Neil Armstrong to become the first man to touch foot on the moon.

Your answer is B "landing a man on the moon."