In This Scene from Dostoevsky's the Brothers Karamazov, Ivan Karamazov

In this scene from Dostoevsky's The Brothers Karamazov, Ivan Karamazov explains to his pious younger brother, Alyosha, a Christian monk, why he cannot accept God. Ivan's impediment to full devotion to God is the problem of evil. He declares that there is untold, unfathomable suffering in the world-suffering such as that of a little child who is tortured, mutilated, and murdered by a ruthless general for no reason. God allows this suffering, but no adequate justification or explanation can be given why God would permit such evil.
-According to Ivan, to achieve a higher, cosmic harmony

A) everyone must suffer.
B) no one should suffer.
C) children should not have to suffer.
D) even children should suffer.