What does the business judgment rule mean?

A) Directors have an obligation to ensure that effective systems are in place to comply with legislation and to monitor the systems to ensure compliance.

B) Directors must act prudently, and on a reasonably informed basis when making business decisions.

C) Directors must use their judgment to determine whether the use of corporate information would make a personal benefit to the detriment of the corporation.

D) Directors must act in the best interests of the corporation.

E) None of the answers are correct.

Please give me a reason why, I have asked this question before but just got an answer rather than a proper explanation. Thanks!