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.
One example of dramatic irony is when the people on the shore see the boat out at sea. They believe that it is a novelty, not that someone might need their help. The people in the boat, see the people on the shore as their rescuers. Both are wrong.
It's raining outside so she can't go to her friend's houses.