Which of the following statements about ethical leadership is/are accurate?

A) Long-term, sustainable success can only be built upon a foundation of solid ethical behaviour.
B) Leaders should try to be ethical out of fear of being caught for doing something wrong.
C) Ethical leaders can act with confidence, knowing that their actions are beyond reproach.
D) a and c
E) a, b, and c

Option A is accurate as research has shown that long-term sustainable success can only be built on a foundation of ethical behaviour. Option B is inaccurate as ethical behaviour should not stem from fear of punishment but from a desire to do the right thing. Option C is accurate as ethical leaders can act with confidence knowing that their actions are beyond reproach. Therefore, options A and C are accurate while option B is inaccurate. Thus, option D, which includes options A and C, is the correct answer.