Since you did not post any options and I was not able to find them online, I will answer this not as a multiple-choice question, but as an essay one. This answer will most likely help you with whatever type of question this is.
Answer and Explanation:
"The Negro Speaks of Rivers" is a poem by Langston Hughes in which four important rivers are mentioned: Euphrates, Congo, Nile and the Mississippi. The speaker's tone is one of pride. It is also important to notice that the speaker is not one, singular person. The "I" in the poem refers to all black people - Americans as well as their ancestors.
Speaking of the rivers has a clear purpose: to show readers the movements of black people throughout history, how they were always present in important places, moments, and civilizations. "I looked upon the Nile and raised the pyramids above it," says the speaker. Black people are strong, resilient, intelligent, crucial for the development of entire nations. They were there at the beginning of time - the region where the Euphrates is located is believed to be the place where human beings first appeared. And they are still here, fighting for justice, for freedom. The identity of black people goes way back, and it continues in time. It is ancestral, as old as history itself, and it deserves to be respected.