单选题 Which of the following statements about securities exchanges is TRUE?

A. Continuous markets are markets where trades occur 24 hours per day.
B. Call markets are markets in which the stock is only traded at specific times.
C. Setting a negotiated price to clear the market is a method that is never used in major continuous markets.

【正确答案】 B

【答案解析】Continuous markets are markets where trades occur at any time, but only when the market is open (i. e. they do not need to be open 24 hours per day). Setting one negotiated price is a method used in major continuous markets to set the opening price.