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.