A trader who has bought a stock at $30 is concerned about a downside movement in the stock and would like to place an order that guarantees selling it at $25. Which of the following will most likely help the trader achieve her objective? (GTC = Good-till-cancelled)

A.“GTC,stop 25,market sell” order

B.“GTC,stop 25,limit 25 sell” order

C.“put option buy” market order with a strike price of 25