Which of the following statements are correct? I. U.S. CEOs are paid much more than CEOs in other countries. Il. A large fraction of compensation for U.S. CEOs comes from stock-option grants. llI. Stock-option grants give the manager a certain number of shares delivered at annual intervals, usually over five years. IV. U.S. accounting rules now require recognition of the value of stock-option grants as a compensation expense O ll only. O I and II only. O I, II, and IlIl only O I, II, and IV only o 1,11,111, and IV