68. A stock price is currently $50. It is known that at the end of 6 months it will be either $60 or $42. Calculate the value of a 6-month European put option on the stock with an exercise price of $48 (r = 0.12). Verify that no-arbitrage arguments r and risk-neutral valuation arguments give the same answers. = 68. A stock price is currently $50. It is known that at the end of 6 months it will be either $60 or $42. Calculate the value of a 6-month European put option on the stock with an exercise price of $48 (r = 0.12). Verify that no-arbitrage arguments r and risk-neutral valuation arguments give the same answers. =