Crane Et Al Identify Four Main Types of Ethical Codes

Crane et al identify four main types of ethical codes. Read the following carefully and choose which of the following is not one of these four main types.

A) Professional codes of ethics (e.g., marketing) .
B) Industry codes of ethics (e.g., financial services industry) .
C) Organizational codes of ethics (code for a single organization) .
D) Accreditation codes of ethics (e.g. use of the Fairtrade mark) .