Suppose that Stock XYZ is currently trading at $25 and does not pay any dividends. Using a binomial tree with two periods, we would like to price an American call option written on this stock with a strike price of $25 and expiration date in one month. Assume that annual continuously compounded interest rate is 1% and the volatility of the stock is 40% per year. In this binomial model, is it ever optimal to exercise the call option before the expiration date? O No Yes We need more information