Calcaluta the price of a 3-month European put option on a stock with a strike price of 50 when the current stock price is 50 and a dividend of 1.5 is expected in 2 month. Also assume the risk-free interest rate is 10% per year, and the volatility is 30% per year. 我觉得应该是Black-Shole是期权定价吗？谢谢。