Why Do Corporate Codes of Ethics Often Focus on Salespeople

Why do corporate codes of ethics often focus on salespeople?

A) Salespeople have more varied contacts,so they have more opportunities for ethical choices.
B) Salespeople tend to be less honest than other employees in the company.
C) Codes of ethics tend to be written by sales executives.
D) Professional organizations do not focus on salespeople,so corporate codes of ethics need to.
E) Non-sales positions do not have opportunities to make ethical choices in their work.