a question, thanks!

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.fficeffice" />

(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;（B）

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

why not A? thanks!