Concept:Hadith 18 teaches the way to erase or correct an evil deed is by doing a good deed after it.Explanation:The Prophet (peace be upon him) said: "Fear Allah wherever you are, and follow a bad deed with a good deed; it will wipe it out."This means a good deed is the prescribed remedy that removes the effect of an evil action.Therefore, among the options, the correct method given in Hadith 18 is good deeds, not supplication, meditation, or regrets alone.Answer:B. good deeds