Boston Scientific Corporation common stock currently sells for $18.73 per share, and the standard deviation of returns is 32.90%. A call option with a strike price of $20.50 is currently trading on the market. The option expires in two months, and the risk-free rate of return is 2.1%. Boston Scientific does not pay a dividend. According to the Black-Scholes model, a decrease in Boston Scientific's stock price of $1 will lead to: an increase in the price of the Boston Scientific call option of $0.72 a decrease in the price of the Boston Scientific call option of $0.24 O a decrease in the price of the Boston Scientific call option of $0.28 an increase in the price of the Boston Scientific call option of $0.28