What Is the Most Likely Reason for More Firms Providing

What is the most likely reason for more firms providing ethics training to employees?

A) Universities do not require all students to enroll in ethics courses.
B) Employees seeking professional certification are tested on ethics.
C) State laws require businesses to have written codes of conduct.
D) Businesses fear being sued by customers for ethical misconduct.
E) Federal laws encourage firms to comply with ethics training guidelines.