please do it in 15 minutes will upvote

8. Answer both parts of this question. (a) The current price of a non-dividend-paying stock is $140 with a volatility of 25%. The risk-free rate is 4%. i. Use a two-step tree to value a six-month European call option and a six-month European put option. In both cases the strike price is $150. (20 marks) ii. Suppose that a trader sells 10,000 European call options. How many shares of the stock are needed to hedge the position for the first and second three- month period? For the second time period, consider both the case where the stock price moves up during the first period and the case where it moves down during the first period