Correct option is B
Option (b) is the correct order of the given sentences.
· Sentence A sets the scene by describing a suspicious action taken by one of the prisoners.
· Sentence C describes the outcome of the search conducted in the prison, which reveals the existence of a tunnel.
· Sentence D introduces the response to the discovery, with the Governor taking action by questioning the prisoners.
· Sentence B concludes the sequence by stating the denial of knowledge by all the prisoners.