Which of the following are generally true of all bonds?

The longer a bond's maturity, the lower is the rate of return that occurs as a result of the increase in an interest rate.

Even though a bond has a substantial initial interest rate, its return can turn out to be negative if interest rates rise.

Prices and returns for long-term bonds are more volatile than those for shorter-term bonds.

All of the above are true.

Only A and B of the above are true.