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: american express black card
Product list:
A: Amazon.com Gift Card in a Black Gift Box (Classic Black Card Design)
B: American Express Guest Check Card Holder Presenter
C: Restaurant Check Presenters - Guest Check Card Holder with Gold Thank You Imprint - 5.5" x 10" (Black 20 Pack) | Customer Check Holder for Restaurants | Restaurant Bill Holder
Answer: B,A,C