单选题 An analyst, who is a CFA Institute member, manages a high-grade bond mutual fund. This is his only professional responsibility. When the analyst comes across a speculative stock investment that he feels is a good investment for his personal portfolio, the analyst: A. may invest in the stock because the analyst would not purchase the stock for the bond portfolio he manages. B. may not invest in the stock because of his position as a portfolio manager. C. is in violation of Standard Ⅳ (A), Loyalty to Employer, by spending time analyzing stocks when he should only analyze bonds.