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: blood sugar monitor without finger pricks
Product list:
A: OhCare Lite Blood Sugar Test Kit  Blood Glucose Meter with Strips and Lancets, Lancing Device, Log, and Case - One Touch Eject Glucometer (50 Strips & 50 Lancets)
B: Wellue Fingertip Pulse Oximeter 60F, Blood Oxygen Saturation Monitor with Alarm, Batteries, Carry Bag & Lanyard for Wellness Use
C: Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover, Batteries and Lanyard (Royal Black)
Answer: A,B,C