题目
为介绍人类在2150年的火星生活,文章写到了更安全的住所、充足的水和便捷的交通。哪一句最适合作为文章结尾?
A. Mars is smaller than Earth and has two moons.
B. With these changes, life on Mars may become safer and more comfortable for people.
C. People built the first homes on Mars many years ago.
D. I enjoy reading books about space in my free time.