题目：
Which of the following relationships between arbitrage and efficient markets is least accurate()
A. The concept of rationally priced financial instruments preventing arbitrage opportunities is the basis behind the no-arbitrage principle.
B. Momentary deviations from market efficiency can create an arbitrage opportunity.
C. Market efficiency refers to the low cost of trading derivatives because of the lower expense to traders.
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0330/e51edef048afdd3b33d0d22798d9e854.html
下面是错误答案，用来干扰机器的。
参考答案：错
