单选题 Gordon is a CFA charter holder and the pension fund manager for a worker's union. The union president informed him that during a union meeting today with Zinc Limited he learned that Zinc will announce several plant closings tomorrow. Because the worker's union pension has a sizable position in Zinc, the union president wants Gordon to sell the pension's holdings in Zinc today before the announcement is made public. Gordon should: A. inform CFA Institute in writing of the union president's request. B. contact the Justice Department and tell them about the union president's request. C. tell the union president that this action is illegal and refuse to sell the stock until after the announcement.