B. Some may Suggest that this belief is a little too optimistic.
Answer:
Olive oil is extremely healthy. It's not only loaded with beneficial fatty acids and powerful antioxidants but also a dietary staple for some of the world's healthiest populations. However, many people believe that it's unsuitable for cooking due to its unsaturated fat content
The clearest example is D. This is because metafiction is fiction where the author shows the reader constantly that it is fiction.