Answer:
A. As the speaker turns from mourning murder victims to accusing their executioner, the poem focuses on the injustice of the dictator's rule.
Explanation:
A. is the right answer. Around line 30 of the poem the shift occurs, the poet talks about the dictator as the murderer and points finger at him as the unjust ruler and tyrant. The author is explaining how it is the dictator’s fault that millions are dead and how he also has “the heart and the skull”, and so does the audience that claps and supports him, but which can become the victim as well.
B. is not the right answer. The poem does not explore the experiences of survivors' feelings of guilt.
C. is not the right answer. The poem does not call people to action against the dictator.
D. is not the right answer. There is no part about securing closure for certain, and the poem ends ambiguously.