Which of the following statements about dealer markets is NOT correct? a. Dealer markets used to be called "over-the-counter (OTC)" markets. b. In dealer markets, thousands of brokers act as agents to bring dealers together with investors. c. A dealer quotes the bid price and ask price for specific stocks, so the bid-ask spread is the dealer's markup. d. A dealer holds inventories of specific stocks that are infrequently traded to "make a market" for those stocks. e. There are more dealers than agents in dealer markets