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: rocky thermal underwear for boys
Product list:
A: Kids Heat Baselayer Set, Black, Small
B: Rocky Thermal Underwear for Men (Thermal Long Johns Set) Shirt & Pants, Base Layer w/Leggings/Bottoms Ski/Extreme Cold (Black - Midweight Fleece/Medium)
C: Hanes Boy's X-Temp Thermal Set
Answer: C,A,B