How does Elie feel when he sees Idek beat his father with an iron bar?

a
He feels disgust for himself for staying silent and failing to help his father.
b
He feels a desperate need to escape the camp.
c
He feels angry at his father for being unable to steer clear of Idek’s fury.
d
He is filled with hatred and disgust for Idek but cannot do anything.

d

He is filled with hatred and disgust for Idek but cannot do anything.