It can be inferred from paragraph 4 that      ...

Câu hỏi: It can be inferred from paragraph 4 that      

A most stars have more than two planets in their habitable zones

B no star has more than two planets in its habitable zone

C it is not possible for a star to have three planets with life on them

D for life to develop, a star must have at least two planets in its habitable zone