Two bonds are available for purchase in the financial markets.

The first bond, Bond A, is a two-year, $1,000 bond that pays semi-annual coupons at a rate of 10%.

The second bond, Bond B, is a three-year, $1,000 bond that pays annual coupons at a rate of 10%.

1. What is the duration of the bond A if the current yield-to-maturity is 10 percent?
2. What is the duration of the bond B if the current yield-to-maturity is 10 percent?
3. The price of which bond is more sensitive to changes in interest rates?