问题如下：
A characteristic of forward commitments is that they:
选项：
A. provide linear payoffs.
do not depend on the outcome or payoff of an underlying asset.
C.provide one party the right to engage in future transactions on terms agreed on in advance.
解释：
A is correct because forward commitments provide linear payoffs. B is incorrect because forward commitments depend on the outcome or payoff of an underlying asset. C is incorrect because forward commitments obligate parties to make (not provide the right to engage) a final payment contingent on the performance of the underlying.
A选项，SWAP的payoff不是线性的呀？为啥A对
