单选题

One advantage of exchange traded funds relative to open-end mutual funds is:

A、 they trade throughout the day.
B、 they offer greater diversification.
C、 they have smaller bid-ask spreads.

【正确答案】 A

【答案解析】

A is correct. Exchange traded funds trade throughout the trading day at market prices that are updated continuously, rather than only trading once a day at closing market prices, as do the traditional open-end mutual funds.