ZhongYi Xie, CFA, a portfolio manager for PIA Investments, plans to manage the portfolios of several family members in exchange for a percentage of each portfolio’ s profits. As his family members have requested that ZhongYi Xie provide the services outside his employment with PIA, he notifies his employer in writing of his prospective outside employment. Two weeks later, ZhongYi Xie has received no response from his employer and begins managing the family members’ portfolios. By managing these portfolios, did ZhongYi Xie violate any CFA Institute Standards of Professional Conduct（）

A. No.

B. Yes, because he failed to obtain written consent from his employer.

C. Yes, because he failed to disclose the outside employment to his existing clients.