I don’t know I think it’s 2, 3, 4, 6
The compound subject is "Young Juan and his father." Both Jaun and his father are the subjects of the sentence, but because there are two of them it means there is a compound subject.
The purpose of Martin Luther King's "I Have a Dream" Speech is to expose the American public to the injustice of racial inequality and to persuade them to stop discriminating on the basis of race. He discusses the state of racism throughout the nation and his hopes for freedom and equality in America.
