Answer: B) The sergeant-major has used the monkey's paw and regrets doing so.
Explanation: In "The Monkey's Paw" by W. W. Jacobs, we know that Sergeant-Major Morris used the monkey paw and regrets it because his face whitened at the mention of the monkey paw, and he's eager to get rid of it after his experience. He discourages Mr. White from ever using the monkey paw, and he throws it in the fire.
