What was the significance of the mood landing on july 20, 1969?

a). important scientific discoveries were made there that allowed american doctors to make great advances in medical technology.

b). it gave the united states the ability to drop atomic bombs on the ussr from space.

c). it proved the us with a surplus of cheese that we are still eating today

d). it signified that the us had won the space race which was victoy over the ussr in the cold war