I believe the answer to this is A
The answer is B.
Charley noting/remembering the way Mr.Taft went is an implication that he will eventually have to remember the direction so he can follow him.
It's about the dark side of human nature. It's a bit dense, and definitely not suited for unskilled readers, but it's pretty good. The movie "Apocalypse Now" is based on "Heart of Darkness."
