B. "But the words were hardly uttered, before the smile was struck out of his face and succeeded by an expression of such abject terror and despair, as froze the very blood of the two gentlemen below. They saw it but for a glimpse, for the window was instantly thrust down, but that glimpse had been sufficient, and they turned and left the court without a word."
This is the only option that shows Utterson being very distraught when he left Jekyll's house because of the "events that transpired at the window"