A trader seeking to sell a very large block of stock, or a piece of urban real estate property, for her client will most likely execute the trade in a(n):
A is correct. Instruments that are infrequently traded and expensive to carry as inventory (e.g., very large blocks of stock, real estate properties, fine art masterpieces, and liquor licenses) are executed in brokered markets. Organizing order-driven markets for such instruments is not sensible because too few traders would submit orders to them.