Which ONE of the Following Statements Is True About Secondary

Which ONE of the following statements is true about secondary markets in the United States?

A) In terms of total volume of activity and total capitalization of the firms listed, the NASDAQ is the largest in the world and the NYSE is the second largest.
B) In terms of the number of companies listed and shares traded on a daily basis, NASDAQ is larger than the NYSE.
C) Firms listed on the NASDAQ tend to be, on average, larger in size, and their shares trade more frequently than firms whose securities trade on NYSE.
D) In the United States, most secondary market transactions are done over the counter.