Consider a nondividend-paying stock with a current price of $45, an in- stantaneous annual expected return of 8%, and annual volatility of 15%. As- sume an 80-period CRR tree. a) Can the stock price be at the same value 3 months from now? If so, how many times would the price have to increase and decrease for this to hap- pen? b) What is the probability that the stock price will be at the same value 3 months? c) What is the probability that in 3 months the stock price is greater than its current price?