比如是不是直接引用书里的结论就可以作为解释，比如问题提到有两个客户分别为a taxable和b tax exempt 问哪一个会realizaed capital gain的话是不是可以如下结论b 因为他是tax exempt investor证据 whose decision is driven by his invest view without regard to tax purposes.解释
是否需要进一步解释为啥tax exempt 比如因为return is free so the investor not need to focus on tax impact 或者 there is no tax loss harvesting and no tax on capital gain compared to taxable investor.
