PLEASE help nobody has answered my recent questions!!
which sentence is best structured to make a direct statement about one idea?
A. NASA is known for sending humans to the moon, but the famous space program has also send in a name spaceship to Mars.
B. some people think that nasty should focus on exploring the universe, but others believe that building a colony on the moon is the most important goal, not even though it will be difficult.
C. the mission of NASA is to explore outer space.
D. 4 since NASA was founded, it has sent more than 250 astronauts into space. ​