Carolyn Roberts, CFA, is a portfolio manager for a bank trust department. One of her clients, Jay Restow, asked her if she could enhance his returns through buying and selling options. Roberts is not an experienced options trader, but she was afraid if she turned Restow down he would take his sizeable account to another institution. She agreed to trade options, and in the next six months she doubled the size of Restow’s portfolio. According to Standard Ⅰ (C)—Misrepresentation, Roberts has:()
A. not violated the Standard, since she made no promises as to potential returns.
B. violated the Standard, since she implicitly represented that she could enhance Restow’s returns using options.
C. not violated the Standard, because she did enhance Restow’s returns.
西北也有的是 ，北京、上海等大城市有的是 。