4. Ibis Company stock is currently selling for $50 per share and has a multiplicative upward movement equal to 1.2776 and a multiplicative downward movement equal to 0.7828. What is the value of a nine-month (0.75 year) European call and a European put with striking prices equal to $60 if the number of tree steps were two? Assume a riskless return rate equal to 0.081.