Which of the following is true? A. Investment bankers specialize in helping companies raise capital by issuing securities; therefore, they do not participate in secondary market. B. The money market is a subsector of capital market. C. A corporate bond is considered low in risk because it pays a fixed stream of income. D. Of all the capital market securities, municipal bonds have the longest time to maturity. E. Due to their efficiency in aggregating information, call auctions are typically used at the beginning of each trading session to open the market, or to close the market, or to restart the market.