The following passage (paragraphs 7-8) mainly suggests that . Proponents of the astronaut-preferred camp point, quite rightfully, at the versatility and independence of

humans. Fans of human spaceflight are certainly correct when they remind us that humans are highly

versatile. People observe the conditions around them and can react to circumstances as needed.

However, people are also fragile. They need food, water, and air. They can exist in only a narrow range of

temperatures and find inhospitable both vacuums and a radioactive environment. While some adventurers

might prefer to remain in space forever, many of them expect to land gently back on Earth. All of these

considerations are extremely challenging and not important for robotic missions.

A. the author is aware of and considers opposition to his position

B. the author thinks humans are too weak to travel in space

C. the author thinks robots are not as versatile as humans

D. the author is not a fan of human spaceflight