Question

select the two sentences from the text that best support the conclusion that nasa did not always build the rockets that they used
a alan shepard became the first american in space flying on the u s army’s redstone rocket
b the atlas missile was used to make john glenn the first american to orbit earth.
c. apollo missions used these to send men to the moon
d. nasa also uses smaller \sounding rockets\ for scientific research
e. these rockets go up and come back down, instead of flying into orbit
um v rocket
ans to the moon.
edit: nasa

Explanation:

To support the conclusion that NASA did not always build the rockets they used, we need sentences showing NASA used rockets built by others or from other organizations.

• Option A: Alan Shepard flew on the U.S. Army’s Redstone rocket, meaning NASA used a rocket from the U.S. Army (not built by NASA themselves).
• Option B: The Atlas missile was used for John Glenn's mission. Missiles are typically built for military purposes (by military or other entities, not necessarily NASA), so this shows NASA used a non - NASA - built rocket (the Atlas missile) for their mission.

Options C, D, and E do not show that the rockets were not built by NASA. Option C just says Apollo missions used rockets (no info on who built them), D is about NASA using their own - type (sounding rockets, but no info on who built them), and E is about the rockets' trajectory, not who built them.

Answer:

A. Alan Shepard became the first American in space flying on the U.S. Army’s Redstone rocket
B. The Atlas missile was used to make John Glenn the first American to orbit Earth