You are considering two Treasury bonds. Bond A has a 9 percent annual coupon, and Bond B has a 6 percent annual coupon. Both bonds have a yield to maturity of 7 percent. Assume that the yield to maturity is expected to remain at 7 percent. If the yield to maturity remains at 7 percent, the price of both bonds will increase by 7 percent per year.（ ）
选项：

A:对
B:错