A．The standards of practice of the legal and medical professions could be violated by attempts to fulfill such unconditional guarantees. B．The result of a lawsuit or medical procedure can hardly be predicted by the professionals handling a client’s case. C．The dignity of the legal and medical professions could be undermined by any attempts at marketing professional services, such as offering unconditional guarantees. D．Clients whose lawsuits or medical procedures have unsatisfactory outcomes cannot be adequately compensated by financial settlements alone.