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Which of the following BEST explains why both Presidents Eisenhower and Kennedy greatly expanded America's space program?
In 1960, the Soviets promised to land the first man on the moon by 1967.
The Soviets had developed a missile delivery system that was capable of orbiting the Earth.
Scientists found evidence of previous life on Mars leading to the possibility of eventual colonization of the planet.
The Soviets launched Sputnik and soon after succeeded in sending the first man into space.
Advancements in computer and engineering technology allowed for such exploration into space.