Detailed Answer
(b) Majority shareholders now owe a fiduciary duty to
their corporation. Answer (a) is incorrect because minority
shareholders do not owe a fiduciary duty to their corporation.
Their main purpose normally is to be investors. Answer (c) is
incorrect because majority shareholders now not only owe a
fiduciary duty to their corporation but also to the minority shareholders.
Answer (d) is incorrect because answer (b) is correct.