Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: boys open bottom sweatpants
Product list:
A: adidas Kids' Tiro 19 Training Soccer Pants , Black/Power Red/White/Bold Blue, X-Large
B: Hanes Boys' Big Eco Smart Pant, Navy, Large
C: Gildan Men's Fleece Elastic Bottom Sweatpants with Pockets, Style G18100, Black, Medium
Answer: B,A,C