Stephen, a trainee and CFA candidate, is in his first week with SKL Limited, a local brokerage house. Stephen was given a phone list and told to make a few cold calls to round up some clients. To generate business he has made various statements. According to AIMR Standards of Professional Conduct, in which of the following statements has Stephen NOT made a material misrepresentation（）
A. "I personally guarantee this investment. It’s a sure winner. "
B. "My firm has consistently outperformed the market indexes and will continue to do so. "
C. "My firm cannot provide all the Financial and investment services you need, but we do offer advisory services. "
