Choice "A" is correct. An HDC takes free of personal defenses but is subject to real defenses. Lack of consideration is a personal defense and thus is not valid defense against an HDC.
Choice "c" is incorrect. An HDC takes free of personal defenses but is subject to real defenses. Infancy is a real defense (represented by the "I" in the FAIDS mnemonic) and so is a valid defense for the maker.
Choice "d" is incorrect. An HDC takes free of personal defenses but is subject to real defense. Forgery is a real defense (represented by the "F" in the FAIDS mnemonic) and so is a valid defense for the maker.
Choice "b" is incorrect. An HDC takes free of personal defenses but is subject to real defenses. Fraud in the execution is a real defense (represented by the "F" in the FAIDS mnemonic) and so is a valid defense for the maker.
