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.

answer; ///i believe that the correct answer is (a); ///the crystal will

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!