Question 21 4 pts Consider a binomial world in which the current stock price of 60 can either go up by 11 percent or down by 9 percent. The risk-free rate is 2.5 percent. Assume a one-period world. Assume a call with an exercise price of 50, what would be the call's price if the stock goes down? O 5.40 O 7.20 4,60 0 6.40 none of the given choices Next