The Underlying Reason for a High Level of Professional Conduct,such

The underlying reason for a high level of professional conduct,such as exemplified in a code of conduct,for any profession is

A) the need for public confidence in the quality of service of the profession.
B) that it provides a safeguard to keep unscrupulous people out.
C) that it is required by federal legislation.
D) that it allows licensing agencies to have a standard to measure deficient performance.