I think that it’s D in my opinion
Explanation:
what's the timeline for I think I can help you out
Answer:
Schirra
Explanation:
Schirra also commanded Apollo 7, the first manned Apollo flight. During that 11-day flight in Earth orbit in 1968, he and fellow crewmembers Walt Cunningham and Donn Eisele tested the Apollo systems and proved it was ready to take astronauts to the moon.
