The second civilian astronaut who flew on apollo 7 was — a) walter cunningham b) john glenn c) neil armstrong d) christa mcauliffe

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

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,

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.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.