老师好，我有两个问题如下：
1、这道题目通过排除法做对了，但是C选项，putable share是如何benefit issuing company‘的？怎么理解？
2、这道题目怎么理解，就是理解哪个选项的risk最低，那么相应地，给投资者的风险补偿也最低，对吗？
maggie_品职助教 · 2018年11月29日
我把原版书的原文放在这里，方便你参考：
from an investor’s point of view, putable common or preference shares are less risky than their callable or non-callable counterparts because they give the investor the option to sell the shares to the issuer at a pre-determined price. This predetermined price establishes a minimum price that investors will receive and reduces the uncertainty associated with the security’s future cash flow. As a result, putable shares generally pay a lower dividend than non-putable shares.
1、因为公司给持有putable share的投资者更低的股息
2、正确
加油。