Which line from the text best supports that Mr. Conway does not recognize Mr. Barting's unmistakable communication from "beyond the grave"? A.
He greeted me coldly with merely a movement of the head and passed on, leaving me standing on the walk, with half–proffered hand, surprised and naturally somewhat piqued.

B.
"I do not think, Mr. Foley, that I have any longer a claim to your friendship, since Mr. Barting appears to have withdrawn his own from me–for what reason, I protest I do not know."

C.
"I met him yesterday ten minutes before meeting you. I gave you exactly the same greeting that he gave me. I met him again not a quarter of an hour ago, and his manner was precisely the same: he merely bowed and passed on."

D.
"...that man's cold greeting was merely a stranger's civil acknowledgment of my own."