Corporate Security Company Provides Other Firms with Security Services

Corporate Security Company provides other firms with security services. Questions of what is ethical involve the extent to which Corporate Security has​

A) ​a legal duty beyond those duties mandated by ethics.
B) ​an ethical duty beyond those duties mandated by law.
C) ​any duty beyond those mandated by both ethics and the law.
D) ​any duty when it is uncertain whether a legal duty exists.