The current price of a stock is $30. Over the next 6 months, the price will either increase by a factor (u) of 1.2 or decrease by a factor (d) of 0.8330. The same is true for the next 6-month period. The annual risk-free rate is 6%. Find the price of a call option on the stock that has a strike price of $32 and that expires in one year.