Which of the following was a NASA program that served as a bridge between human space flight and the moon landing? O Mercury
O Gemini
O Apollo
O Sputnik​

He believed Gemini spacecraft could fly in lunar operations before Project Apollo, and cost less. NASA's administration did not approve those plans.

a

explanation:

a direct vote in which an entire electorate is invited to vote on a particular proposal. this may result in the adoption of a new law.