Which one of the following statements regarding orders is false? 1) A market order is simply an order to buy or sell a stock immediately at the prevailing market price. 2) A limit sell order is where investors specify prices at which they are willing to sell a security. 3) If stock ABC is selling at $50, a limit-buy order may instruct the broker to buy the stock if and when the share price falls below $45. 4) A day order expires at the close of the trading day. 5) None of the above