Who says "will all great Neptune's ocean wash this blood clean from my hand"?AMacbethBLady MacbethCBanquoDDuncanAnswer: A. Macbeth Read Explanation: Macbeth says this after he kills King Duncan and looks at his hands. He's asking if the waters of Neptune, the Roman god of fresh water, would be enough to wash the blood from his hands. Macbeth's line reveals his guilt and regret for killing someone he was loyal to. He believes that the blood would color the water red, and that nothing will ever wash the blood from his hands. Read more in App