An American put option on ENRON stock has a strike price $52.5 and matures in 9.0 months. The continuously compounded risk-free rate is 5.25 percent per year. If the price of ENRON stock goes to zero, what is the value of the put option? \begin{tabular}{|l} \hline 52.5 \\ \hline 54.608 \\ \hline 50.473 \\ \hline 49.065 \end{tabular} Question 8 10 pts Consider a European put option with a strike price of $143.0 and maturity of 6.0 months. The underlying stock price equals 123 . The continuously compounded risk-free rate is 7.0 percent per year. What is the lower and upper bound, respectively, on the option value? \begin{tabular}{l} \hline 20.0,143.0 \\ \hline 15.082,143.0 \\ \hline 20.0,138.08 \\ \hline 15.082,138.08 \end{tabular}