很奇怪的一道语法题，感觉从时态和意思上看，几个选项都有问题

黑海土匪

Lincoln, discovering in young manhood the secret that the Yankee peddler has learned before him, knew how to use a good story to generate good will.

A. Lincoln, discovering in young manhood the secret that the Yankee peddler has learned before him, knew

B. Discovering in young manhood the secret that the Yankee peddler has learned before him, Lincoln knew

C. Lincoln, discovering the secret that the Yankee peddler had learned in young manhood before him, knew

D. In young manhood Lincoln discovered the secret that the Yankee peddler had learned before him;

E. Lincoln, discovered in young manhood the secret that the Yankee peddler had learned before him, knew

黑海土匪

NN们解释下吧