Rank the interest sensitivity of the following from most sensitive to an interest rate change to the least sensitive.
I. 8% coupon, noncallable 20 year maturity, par bond
II. 9% coupon, currently callable 20 year maturity, premium bond
III. Zero coupon, 30 year maturity bond
A. I, II, III
B. II, III, I
C. III, I, II
D. III, II, I