A call option on HPX stock that expires in one month is trading for $3. The exercise price is $45 and the stock price is $47. The risk free rate (continuously compounded) is 2% per year. Use the Black-Scholes model to calculate the annualized implied volatility (standard deviation). Hint: Use a trial and error method to estimate the volatility or the solver function in excel A. 20.5% B. 33.5% C. 45.0% D. 60.0%