为什么C不对呢

问题如下：

On what assumption are most derivatives pricing models based?

选项：

A.Arbitrage opportunities exist. B.Only one price for a derivative exists. C.The underlying asset price is inferred to determine the derivative price.

解释：

Derivatives pricing models typically rely on the no-arbitrage principal, which also means the law of one price.衍生品的定价大都基于无套利的定价模型，也就是在一价定律得到满足的情况。