which of the following was a nasa program that served as a bridge between human space flight and the moon…

which of the following was a nasa program that served as a bridge between human space flight and the moon landing?\no mercury\no gemini\no apollo\no sputnik
Answer
Brief Explanations:
The Gemini program tested technologies and procedures for longer - duration spaceflight and rendezvous and docking maneuvers, which were crucial steps between the early Mercury human spaceflights and the moon - landing Apollo missions. Mercury was the first human spaceflight program. Apollo was for moon landings. Sputnik was a Soviet satellite, not a NASA program.
Answer:
B. Gemini