What can be inferred from the passage？
A:When we are sure about what we are looking for, we
选项：

A:What can be inferred from the passage？
B:
A:When we are sure about what we are looking for, we will understand the whole human history.
C:
B:No other culture is advancing as the human culture.
D:
C:As long as the group forms a culture, they may have history.
E:
D:It will be impossible to find the beginning of the human history.