A Paragraph about dedication

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Which of the following facts is true for the jallianwalla massacre, as discussed in gandhi's reponse to mr. pennington? a) all members gathered for the vaisakhi fair remained calm. b) general dyer made a verbal proclamation warning all members of the crowd to stay peaceful. c) children attending the vaisakhi fair were killed, d) anyone who tried to run away from the violence was able to escape.

Which character is mainly focused on in to kill a mockingbird?