Which of the Following Has the Greatest Price Risk

Which of the following has the greatest price risk?

A) A 10-year, $1,000 face value, 10 percent coupon bond with semiannual interest payments.
B) A 10-year, $1,000 face value, 10 percent coupon bond with annual interest payments.
C) A 10-year, $1,000 face value, zero coupon bond.
D) A 10-year $100 annuity.
E) All of the above have the same price risk since they all mature in 10 years.