影响合理运输的因素有（）。

A．运输单位

B．运输环节

C．运输工具

D．运输时间

Which of the following statements about put and call options is FALSE()

A. The price of the option is less volatile than the price of the underlying stock. 

B. Option prices are generally higher the longer the time till the option expires. 

C. For put options, the higher the strike price relative to the stock’s underlying price, the more the put is worth.