An investor gathered the following information on two U. S. corporate bonds: Bond J is callable with maturity of 5 years Bond J has a par value of $10000 Bond M is option-free with a maturity of 5 years Bond M has a par value of $1000 For each bond, which duration calculation should be appliedBond J Bond M（）
A. Effective Duration Effective Duration only
B. Modified Duration Modified Duration or Effective Duration
C. Effective Duration Modified Duration or Effective Duration
