Respuesta :

The second civilian astronaut who flew on Apollo 7 was Walter Cunningham

Answer: Option (a)

Explanation:

Apollo 7 mission was proposed in October 1968 and this was the first mission to carry crew(members) to the space.  

This mission consists of 3 crew members,

  • Commander "Walter M.Schirra" Jr,
  • Command module pilot " Donn F. Eisele"
  • "Walter Cunningham" as lunar module pilot.

Lunar module pilot was the sole survivor in that mission.  Apollo 7 mission lasted for nearly 21 months and it fulfills the drawback of Apollo 1 mission.