Question

question 16
the first time a human walked on the surface of another celestial body was when
a. led the apollo 10 mission and landed on mars.
b. explored the dark side of the moon.
c. stepped onto the surface of the moon.
d. gave his crew the order to step onto the surface of the moon.

Explanation:

The first human - to - walk on the surface of another celestial body was during the Apollo 11 mission when astronauts stepped onto the moon. Apollo 10 did not land on Mars. Exploring the dark side of the moon is different from the first human walk on another celestial body. And it was the astronauts themselves who walked, not just an order - giving situation.

Answer:

C. stepped onto the surface of the moon