$4.$ Warren just bought $100$ shares of a stock for $$100.$ He believes the stock is worth $$120$ and is willing to sell at that price.

a$.$ Why type of order would Warren place in order to realize his dream of selling at $$120/$share$?(1$ point$)$

b$.$ Now Warren is worried. He bought the stock at $$100,$ but the price is now $$97.$ His concern is that the price may fall even more and wants to place an order to protect against downside risk. What type of orders can he place to protect against downside risk? What are the advantages and disadvantages of each? $(2$ points$)$