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: youth mx helmet small
Product list:
A: AHR H-VEN12 Youth Motocross Helmet Full Face Offroad Dirt Bike Helmet Motorcycle ATV Mountain Bike (X-Large, Pink)
B: O'Neal 0200-464 2SRS Youth Helmet Villian, Neon Yellow, L
C: O'Neal Unisex-Adult Off-Road Style 2SERIES Helmet SPYDE Black/hi-viz L, L
Answer: C,B,A