Help me in solving SQW29 problem

help
,
1

My issue

I am unable to solve this question please provide correct solution for this question

My code

SELECT DISTINCT
    pc.product_type,
    dps.product_id,
    dps.units_sold,
    dps.month
FROM 
    division_product_sales dps
JOIN 
    product_catalog pc ON dps.product_id = pc.product_id
JOIN 
    monthly_sales ms ON dps.month = ms.month
WHERE 
    pc.margin_type = 'High_Margin'
ORDER BY 
    dps.month, dps.units_sold DESC;

Learning course: Database management systems
Problem Link: Project - JOIN and Filtering in Database management systems