The price of Cilantro, Inc., stock will be either $67 or $89 at the end of the year. Call options are available with one year to expiration. T-bills currently yield 4 percent.

a.	Suppose the current price of the company's stock is $78. What is the value of the call option if the exercise price is $63 per share? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)
b.	Suppose the current price of the company's stock is $78. What is the value of the call option if the exercise price is $73 per share? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)