A stock price is currently $50. Over each of the next two 3-month periods it is expected to go up by 6% or down by 5%. The annual risk-free interest rate is 5%. Use the binomial option pricing model with two subperiods to find the fair value of the options given below. (Tip: Use the risk- neutral probability approach.) Round your answer to 2 decimal places. a) 6-month European call option with a strike price of $51: $ b) 6-month European put option with a strike price of $51: $