Concept:An antonym is a word that means the opposite of the given word.Explanation:The word "laudable" means deserving praise or commendation.Now check each option for the opposite meaning."Blameworthy" means deserving blame or criticism.This is directly opposite to deserving praise.The other words are either positive or similar in meaning, not opposites.Therefore, the correct antonym is "blameworthy".Answer:D. Blameworthy