Can't Choose A Name For My Character?

My book is set in a post-apocalyptic future where is is essentially anarchy. I need help on choosing a name for the protagonists younger sister. Here's a little about the character:

Physical Description: She has long, softly curled golden blonde hair. Her eyes are light blue and her skin is pale. She has high cheek bones and delicate facial features. She's nine years old.

Personality: She seems like a bright light in an otherwise dark world. She is intelligent, optimistic, and kind. She cares about everyone and everything. She is soft-spoken, shy, and is easily frightened.

These are my name ideas: Emory, Tesla, or Jana.

Which one do you think suits my character best?