Concept:This question tests your ability to identify the correct spelling of commonly used English words.Rule / Clue:The correct spelling must match standard English dictionary entries. Look for common suffix patterns and letter combinations.Explanation:Option A: “Adamant” is correctly spelled. It means refusing to change one’s mind.Option B: “Amorphuous” is wrong. The correct spelling is “Amorphous” (without a clear shape).Option C: “Despottic” is wrong. The correct spelling is “Despotic” (like a tyrant).Option D: “Contentous” is wrong. The correct spelling is “Contentious” (causing argument).Only option A matches the proper spelling.Answer:A. Adamant