Questions 9 and 10 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions. Now listen to the news. According to the scientists, it is possible for the primitive life to develop on other planets because the primitive life______.
A．is the earliest life on earth. B．could be reserved in fossils. C．flourished on some 3.4 billon years ago. D．can quickly develop into various forms.