Case 1: Should you early exercise the following American-style put option? If not always, under what situation would you early exercise? Stock price = $2 Exercise price 2 $50 Time to maturity = 6 months Case 2: Should you early exercise the following American-style call option? If not always, under what situation would you early exercise? Stock price 2 $77 Exercise price = $75 Dividend amount 2 $0.50 Ex-dividend = tomorrow Time to maturity = 2 months Case 3: The Black-Scholes option pricing model produces an option price of $15.77. However, the option market prices the same option as $17.25. List all possible factors to contribute to the pricing difference