The clue which helped readers know more about the chronological structure of the paragraphs is B. The author includes the years events happened.
<h3>What is a clue?</h3>
This is known to be a piece of evidence or information which gives an indication or a detection.
Hence, we can note that the author carefully explains a series of events by including the years of events in the story which gave a chronological structure to the way the piece was presented.
