In these lines, we see an example of exposition. Exposition is the part of a text in which the author presents background information that the reader needs to know before reading the story. Exposition, therefore, is the first section of a text. In this case, the background information that readers need to know is that the setting has recently experienced a very destructive war. The character can remember the period before the war, and how the city was transformed.
Travelogue is a literary genre that tells about travel experiences of the autor. In this case, options B, D and E describe the literary elements present in a travelogue.