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: diapers for youth boys
Product list:
A: Goodnites Nighttime Bedwetting Underwear, Girls' S/M (43-68 lb.), 99 Ct
B: Curity Youth Pants Youth Pull-On Diapers Size Small/Medium Case/68 (4 bags of 17)
C: Prevail Proven | Youth/Small Adult Pull-Up | Incontinence Protective Underwear | Extra Absorbency | 88 Count
Answer: C,B,A