They saw a lot of Abandoned Horses.
A coordinating conjunction is used to link phrases, words, clauses, or sentences of equal rank. The coordinating conjunctions are for, and, nor, but, or, yet, and so. In the paragraph you have given above, sentence 4 and sentence 6 have used the coordinating conjunction "and". In your choices, Sentence 4 appears; thus, it's the best answer.
A. Sentence 4
One play I can think of that has a long monologue is Hamlet.
Answer: One central idea of “I know why the caged bird sings” is Racism.
