Which of Keller's claims is based on fact? A.
"...if, in short, I am an optimist, my testimony to the creed of optimism is worth hearing"
B.
"How many good men, prosperous and contented, looked around and saw naught but good, while millions of their fellowmen were bartered and sold like cattle!"
C.
"A man must understand evil and be acquainted with sorrow before he can write himself an optimist and expect others to believe that he has reason for the faith that is in him"
D.
"Doubt and mistrust are the mere panic of timid imagination, which the steadfast heart will conquer, and the large mind transcend."