44. The writer would like to divide the preceding paragraph into two paragraphs, each one focusing on a different day of the train ride. The best place to start the new paragraph would be at the beginning of Sentence:
Your Answer is
Correct Answer is F
Explanation
Here is divided into two train ride experiences, S3 is a transitional segment, mentioning "these are the same as when I was a child", from S4 to talk about the author's childhood experience, so F is correct.