Why does Diogenes carry a lighted lamp to inspect the face of people at bright noonday？ Because（）.

Why does Diogenes carry a lighted lamp to inspect the face of people at bright noonday？ Because（）.
A.he is half-blind and cannot see anything clearly
B.he is trying to find a real man
C.he wants to be different
D.he is trying to mock others
正确答案：he is trying to find a real man