Wu Yang, CFA, manages individual portfolio

问题：

Wu Yang, CFA, manages individual portfolios for Far East Trust Company. Hu Haiyun, a client, proposes to Wu Yang, "Any year my portfolio achieves at least a 20 percent return before taxes, you and your family can fly to Sanya in Hainan Province in China at my expense and use my condominium during the Spring Festival in February. " While Wu Yang does not inform his employer of the arrangement, he watches Hu Haiyun's portfolio performance intensively throughout the year and makes sure her account gets top priority for any partially executed block trade order. Hu Haiyun's portfolio return exceeds the 20 percent target for the year, and Wu Yang vacations in Sanya during the following February as Hu Haiyun's guest. According to the Standards of Professional Conduct, Wu Yang has least likely violated the CFA Institute Standards relating to:

A. fair dealing.
B. disclosure of conflicts.
C. priority of transactions.