(who, whom) was the first president of the united states

What sentence correctly uses it’s underlined relative pronoun?

My best friend is a white girl named denise — we look at boys together. she sat in front of me all through grade school because of our names: o'connor, ozawa. i know the back of denise's head very well. why does the speaker share details about race, friendship, and names in this stanza? check all the correct answers. to indicate that the students were already segregated and isolated to emphasize the idea that all americans were treated as equals prior to the attack to reveal the extent of the impact resulting from the attack on pearl harbor to identify the compassionate response following the attack on pearl harbor

Analyze the graphic organizer below and answer the question that follows. / which element is necessary to complete the graphic organizer? complex sentence prepositional phrase subordinate clause independent clause the.i think it might be c but idk