Concept:To arrange jumbled sentences, identify the chronological flow of actions and reactions. The first and last sentences are fixed; the middle must connect logically.Explanation:S1 describes locking up and going to bed. Sentence C follows naturally: the narrator blows out the candle and tells Noble what Donovan said. Next, A shows Noble’s quiet reaction to that news. After an hour in bed, D shows Noble asking if they should inform the Englishmen. Sentence B gives the narrator’s detailed reply to that question. Finally, S2 concludes with Noble agreeing.Answer:CADB (Option B).