问题如下图：
选项：
A. 
B. 
C. 
如何理解B选项？为什么不能更频繁？ 解释：
NO.PZ2016031101000004 c怎么错了。不是说2010年以后要按照最后一个calenr y披露吗不是business y
NO.PZ2016031101000004 A错在哪里？请一下。谢谢
more frequently threquirethe composite-specific valuation policy. of the last business y of the month unless it is the calenr month-en B is correct. Provision 1.1.A.3.c states thportfolios must value\"no more frequently threquirethe valuation policy.\" The finition of fair value inclus the statement, \"In the absenof objective, observable, unaustequotemarket prifor inticinvestment in active market on the measurement te, the valuation must represent the firm’s best estimate of the market value.\" Provision 1.1.A.4 states, \"For perio beginning on or after 1 January 2010, firms must value portfolios of the calenr month enor the last business y of the month.\" (See Section 3.2 of the reang.) 遇到大额现金流的时候 B是不是就对了？
您好，答案内容是在2020届的讲义里么，感觉有些不一样
