a stock price is currently $50. over the next two 6 month periods, it is expected to go up by $10, down by $10 or stay constant.

a stock price is currently $50. over the next two 6 month periods, it is expected to go up by $10, down by $10 or stay constant. the riskfree interest rate is 20% per annum with semi-annual compounding. what is the value of a 1-year european call with strike price of $45