A trader sells a call option with a strike price of 50 and a put option with a strike price of 45. Both options have the same maturity. The call costs 4 and the put costs 2. Under what circumstances does the trader always make a profit? Select one: O a. If the stock price on expiration date is more than 36 and less than 54. ob. If the stock price on expiration date is less than 43 or greater than 54. c if the stock price on expiration date is more than 39 and less than 56. d. If the stock price on expiration date is less than 45 or greater than 50