Use the Black-Scholes formula for the following stock: Time to expiration Standard deviation Exercise price 6 months 54% per year $54 Stock price $54 Annual interest rate 4% 0 Dividend Recalculate the value of the call with the following changes: a. Time to expiration. b. Standard deviation 3 months c. Exercise price d. Stock price 20% per year $60 $60 6% e. Interest rate Select each scenario independently. Note: Round your answers to 2 decimal places. Value of the Call Option a. C falls to b. C falls to C. C falls to d. C rises to e. C rises to