Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: diapers are not forever board book
Product list:
A: What Are Little Boys Made Of? (Little Bird Greetings)
B: The Potty Book: For Boys
C: Diapers Are Not Forever / Los panales no son para siempre (Best Behavior Board Book Series) (English and Spanish Edition)
Answer: C,B,A