3. Until 1978, the AICPA's Code of Professional Ethics prohibited advertising by its members, out of a belief that advertising was undignified and would reduce the profession's credibility. After several court cases supported the right of professionals to advertise their services, the AICPA's code was revised. a. What guidance does the current Code of Professional Conduct provide to its members when determining whether advertising is acceptable? b. Provide two specific examples of advertising that would not be allowed.