Which statement best explains why Shakespeare alludes to the story of Pyrrhus and Priam

Which statement best explains why Shakespeare alludes to the story of Pyrrhus and Priam throughout Act II, Scene ii of Hamlet?

a. The allusion highlights ideas that relate to the murder of King Hamlet.
b. The allusion proves that Claudius is guilty of murdering Hamlet’s father.
c. The allusion shows the significance of the play’s Greek setting.
d. The allusion suggests that Hamlet is wrong to suspect his uncle of murder.