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: temp switch
Product list:
A: HiLetgo 2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110C Electronic Temperature Temp Control Module Switch with 10A One-channel Relay and Waterproof
B: Original Engine Management 8331 Water Temp Switch
C: PartsSquare 185 to 200 Degree Electric Engine Cooling Fan Thermostat Switch 3/8" Pipe Thread NPT
Answer: B,C,A