Task: Query_Product_Rank
Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: 6" rain shower head ceiling mount arm
Product list:
A: Shower Head
B: SparkPod Shower Head - High Pressure Rain - Luxury Modern Chrome Look - No Hassle Tool-less 1-Min Installation - The Perfect Adjustable Replacement For Your Bathroom Shower Heads
C: Delta Faucet R10000-UNBXHF MultiChoice Universal Shower Valve Body for Shower Faucet Trim Kits
D: Modbath 6 Inch Square Shower Drain with Drain Base Flange 2" Outlet, Brushed Stainless Steel Finished Quadrate Floor Drain for Bathroom with Tile Insert Cover, Hair Strainer, Threaded Adapter
Answer: B,A,C,D