Which of the Following Best Expresses McMahan's "Criterion of Responsibility

Multiple Choice

Which of the following best expresses McMahan's "criterion of responsibility"?

A) Soldiers may attack or kill anyone who is to some degree morally responsible for an unjust threat or an unjust war, but not anyone else.
B) Soldiers may attack or kill any unjust combatant and anyone else who is morally responsible for an unjust threat.
C) Soldiers may attack or kill any combatant who is morally responsible for his or her participation in the war.
D) Soldiers are morally responsible for the deaths they cause, even when those deaths are collateral damage in pursuit of a legitimate military objective.