单选题 A fourth market transaction occurs when: A. a security is purchased by a dealer and then immediately resold. B. exchange-listed shares are traded in the OTC market. C. a buyer and seller complete a trade without the assistance of an intermediary broker.

【正确答案】 C

【答案解析】The fourth market has evolved primarily through institutions as a way to reduce their transaction costs. Modern telecommunications technology has been making the direct search methodology a reasonable alternative.