71. The writer wants to divide the preceding paragraph into two so that one of the paragraphs focuses on the narrator's awareness of the children riding the carousel. The writer can best accomplish this goal by beginning a new paragraph with Sentence:
Your Answer is
Correct Answer is B
Explanation
Intervention subsections of the topic, one of which is "the author realizes that the children are riding a merry-go-round", from S4 "When I waited for my ride to start, the children did not know where they came out" and began to describe the children's Appears, so split from S4.