The value of an interest-rate call option
问题:
The value of an interest-rate call option at expiration is zero or the:()
A. present value of, the market rate minus the exercise rate, adjusted for the period of the rate, times the principal amount.
B. market rate minus the exercise rate, adjusted for the period of the rate, times the principal amount.
C. present value of, the exercise rate minus the market rate, adjusted for the period of the rate, times the principal amount.