问题详情

Which of these statements is true based on the information in the passage？
A．The earth is one of the oldest planets in our galaxy.
B．Most scientists believe that there is intelligent life on other planets.
C．Scientists are trying different ways to find signs of life on other planets.
D．More advanced civilizations than ours have developed on other planets.请帮忙给出正确答案和分析，谢谢！