Absolute antonyms: also known as complementary antonyms, these antonyms are mutually exclusive in the sense that positive A must negate B, positive B must negate A; meanwhile, negative A must affirm B, and negative B must affirm A. According to the definition above, which of the following is the following set of absolute antonyms? ['Complete-Incomplete.', 'Happy-angry.', 'Cold-warm.', 'Humble-noble.']