Which types of themes distinguish literature written in the realist era from earlier literature?

The type of theme which distinguish literature written in the realist era from earlier literature IS EVERY DAY LIFE AND COMMON SUBJECTS.
Realism refers to a literary movement that originated from France in the 19th century and it involves presenting familiar things as they are. This is in contrary to romanticism, which portrays imaginary things.

The answer is b a comparison without the use of like or as