At 2:15 pm EST, a customer gives his registered representative a market order to buy 100 shares of ABC at the close. What should the registered representative do with the order?
A) Send in the order after the close to ensure receiving the closing price.
B) Execute the order at the closing price first thing next morning.
C) Send the order to the floor immediately.
D) Hold it at his desk until just before market close.
Answer: C) Send the order to the floor immediately.