Audition for Into The Woods, what should I sing?

Hello, I'm a 17 year old girl, auditioning for the part of Cinderella, I am both an alto and soprano. I have a fairly wide range of belting, mixing, and head voice. I can comfortably hit what I *think* is a high A (12 keys to the left of middle C.) Can anybody tell me what a perfect song to sing would be? Thank you very much!!