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: chicco keyfit 30 infant car seat newborn insert
Product list:
A: GoFit Backless Booster Car Seat - Shark 15x17x5 Inch (Pack of 1)
B: Chicco Fit2 Air Infant & Toddler Car Seat - Marina, Grey/Blue
C: Chicco KeyFit Infant Car Seat Base - Anthracite
Answer: B,C,A