问题如下：
In what way is a futures price analogous to a stock price paying a continuous dividend yield?
选项：
解释：
It costs nothing to enter into a futures contract. A futures price should therefore have zero growth rate in a risk neutral world. The same is true of a stock that provides a dividend yield equal to the risk-free rate.
这题问的啥？答的又是什么？
不懂
