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: infant stroller without car seat
Product list:
A: Baby Jogger City Go Air Infant Car Seat, Granite
B: Baby Trend Snap-N-Go Premiere Universal Infant Car Seat Carrier, Black
Answer: A,B