the major difference between forward and option is that forward contract must be exercised ; option you donot really need to exercise it at the due date, you can choose to exercise or give up the right on the option contract
In the question above, it points out that he want to get rid of his exposure ot RB'S share price movement, so he should take forward contract, he wont face any up or downside risk at the due date. You choose A
However, usually people prefer upside risk and in the real world, we will take put option, this is a bit different from the question. If in the final date, the real price of stock share is above the contract price, they may decide not to exercise the option, sell at the stock market instead.
[此贴子已经被作者于2007-12-9 19:07:33编辑过]