问题
单项选择题
In securities exchange markets, a member who executes stop loss or stop buy orders when the specified price occurs is most likely a:（）
A. floor broker.
B. market maker.
C. commission broker.
答案
参考答案：B
解析：
Market markers (specialists) have two major functions. They act as brokers to match buy and sell orders, including special (stop loss or stop buy) orders. They also act as a dealer to maintain a fair and orderly market by providing liquidity when the normal flow of orders is not adequate.