Marty sued his lawyer, Max Bluster, for malpractice (professional negligence), claiming that Max had been negligent in drafting a contract for Marty's business, Indiana Bowling Bonzanza. In this case, Max Bluster's conduct will be judged by which standard of care?

By the standard of a reasonable person of ordinary prudence.

By the standard of a reasonable member of his profession (the legal profession).

By the standard generally owed to business invitees

By the standard of pure comparative negligence, because that is Indiana's law