Two 20-year corporate bonds are issued at par, with stated interest rates of 10%. One issue is puttable at par in 5 years, while the other is puttable at par in 10 years. If interest rates rise by 200 basis points shortly after issuance, which statement is TRUE?

a. The bond puttable in 5 years will depreciate more than the bond puttable in 10 years
b. The bond puttable in 10 years will depreciate more than the bond puttable in 5 years
c. Both bonds will depreciate by equal amounts
d. The rate of depreciation depends on the credit rating of the bonds