问题如下：
3. When instructing Grohl to eliminate the multi-factor analysis from the research report, does Brecksen violate any CFA Standards?
选项：
A. No.
B. Yes, relating to record retention.
C. Yes, relating to diligence and reasonable basis.
解释：
A is correct.
Brecksen does not consider the multi-factor analysis a critical component of the analysis or the resulting investment recommendation and thus, under Standards V(A) and (C), is not required to maintain a record of the analysis within the completed report.
Apfelbaum uses traditional "top-down" fundamental analysis in the investment process. The report followed the traditional format of previous reports on the same company. It contained a complete fundamental analysis and recommendation—indicating diligence and reasonable basis. The report also contained a multi-factor analysis—which is a quantitative analysis tool. If quantitative analysis were the basis of the investment recommendation, it would constitute a change in the general investment principles used by the firm. According to Standard V(B) –Communications with Clients and Prospective Clients, Brecksen and Grohl would be required to promptly disclose those changes to clients and prospective clients.
B看了报告，觉得量化模型不重要，而且表现出他对这个模型不熟知，然后G本来想保留模型，但是B电话打断了。这些信息难道都是误导信息？怎么就能判断他删除模型是做了充分研究和判断呢？
