1. Which of the following option sensitivities measures the change in the price of the option with respect to a decrease in the time to expiration?
A. Delta.
B. Theta.
C. Gamma.
D. Rho.
2. A European put option has a strike price of $28 and the underlying stock price is $24/share with no future dividend payout. The applicable risk-free rate for the maturity of this option is 5%. The upper and lower bounds for this European put option are
A. 24 and 0.
B. 24 and 2.67.
C. 26.67 and 2.67.
D. 28 and 0