Which Statement Best Exemplifies the Standard of Care Expected of Directors

Which statement best exemplifies the standard of care expected of directors?

A) The care,diligence,and skill that a reasonable shareholder would expect in comparable circumstances.
B) The care,diligence,and skill that the average person would exercise in comparable circumstances.
C) The care,diligence,and skill that a professional would exercise in comparable circumstances.
D) The care,diligence,and skill that a reasonably prudent person would exercise in comparable circumstances.