I believe it's C. Whitney’s description of Ship-Trap Island instantly puts the reader into the right mood to read the story.
1, 2 and 4 don't really seem surreal, those are the options that could happen anytime in your life. However, is it possible for a human being to transform into an insect? Since it is not, the correct answer to your question, what can be considered surreal in the Metamorphosis is 'Gregor transforming into an insect'.
Answer:
D.) "NASA studies Earth to learn about how the planet changes. Earth's
parts - land, air, water and life - are always changing. Some of the
changes are natural and some are caused by humans."
Paragraph 18)
Explanation: