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: monitor keyboard rack mount
Product list:
A: Mount-It! Monitor and Keyboard Wall Mount, Standing Workstation VESA Keyboard Tray Platform, 26 Inch Wide Platform with Surface for Mouse Pad (MI-7917)
B: Soundance Laptop Stand, Aluminum Computer Riser, Ergonomic Laptops Elevator for Desk, Metal Holder Compatible with 10 to 15.6 Inches Notebook Computer, Silver
Answer: B,A