How Do Law and Business Ethics Relate to Each Other

How do law and business ethics relate to each other?

A) Ethics is unrelated to the law because ethics answers only moral questions.
B) Ethics entirely determines what the laws will be, as ethics is focused on finding one right answer to every question.
C) The law establishes what is ethical, as anything which is legal is automatically ethical.
D) The law establishes ethical rules and boundaries, because laws take multiple stakeholders into consideration.
E) Law and business ethics serve as an interactive system, informing and assessing each other.