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: teenage girl backpacks
Product list:
A: School Backpack Girls Teens Bookbags Set 15 inches Laptop Bag Kids Lunch Tote Bag Clutch Purse (Big Floral - Black)
B: Calvin Klein Big Girls' Micro Wirefree Front Closure Bra, Black, 30A
C: Girls Bowknot Cute Leather Backpack Mini Backpack Purse for Women
Answer: C,A,B