What discovery does Chillingworth make when Dimmesdale falls into a deep sleep?

• A. Dimmesdale experiences a spiritual vision
• B. Self-inflicted mark on his chest of the letter A
• C. Chillingworth finds Pearl crying
• D. Dimmesdale confesses privately

Answer: (B)

Chillingworth’s discovery hinges on a visible sign of Dimmesdale’s guilt that appears in a moment of vulnerability. When Dimmesdale falls into a deep sleep, the doctor notices a scarlet mark burned into the minister’s chest—Dimmesdale has carved the A into his own flesh as a harsh act of penance for his sin. This self-inflicted mark confirms to Chillingworth that Dimmesdale is the one who bears the secret guilt of Hester’s adultery, and it fuels Chillingworth’s resolve to torment him under the pretense of medical care. The other options don’t fit this moment: there is no spiritual vision, no sign of Pearl crying, and no private confession at that time.