Questions: Which of these passages from Saki's story, "The Open Window," is an example of flashback? Sec. 14:"They were all three engulfed in a treacherous piece of bog" is flashback used by the niece. Sec. 9: "An undefinable something seemed to suggest masculine habitation" is a flashback. Sec. 8; "Then you know practically nothing about my aunt?" is flashback used by Saki.

The answer is Sec. 14: "They were all three engulfed in a treacherous piece of bog" is flashback used by the niece.

This passage is indeed an example of a flashback. In Saki's "The Open Window," the niece, Vera, tells a fabricated story about her uncle and his companions being engulfed in a bog, which supposedly happened in the past. This narrative technique is used to create suspense and set up the twist at the end of the story.

This passage is not an example of a flashback. It describes the present setting and atmosphere of the room, suggesting the presence of men, but it does not refer to a past event.

This passage is not a flashback. It is part of a conversation between Vera and Mr. Nuttel, where Vera is inquiring about Mr. Nuttel's knowledge of her aunt. It does not refer to a past event or story.