Answer:
Tiana is smart, beautiful, and kind.
Your were right, it is the first one.
I'd say that the theme of this story encourages us that anyone can be important. Not just lawmakers or rich people or even extroverts, but anyone, whether you're a shy artist or an outgoing sporty-type. Some variation on that is probably what you're looking for, I shouldn't do your work for you! :)
An author of a detective novel is most likely to use figurative language to help the reader visualize a character.
These writers will use figures of speech such as similes, metaphors, personifications, etc. in order to describe their characters and make them easier to visualize for the audience. Oftentimes, these characters have very distinctive characteristics about them.