Consider the Black-Scholes valuation model with the following information on a 6-month call option contract: underlying stock value is $50, exercise price is $60, annual risk-free rate is 10%, annualized standard deviation of the underlying stock is 0.5. The standard normal distribution values are N(di) = 0.4207 and N(dz) = 0.2912. 7. How many calls would you need to purchase if you want to replicate the return from investing in one share of stock? A) B) C) D) 0.2912 3.4341 0.4207 2.3770