List out 10 business ID that are being reviewed the most by users and list out what are top 3 business categories.
being reviewed the most refers to MAX(user_id); business categories refer to category_name;
SELECT T2.business_id, T3.category_name FROM Reviews AS T1 INNER JOIN Business_categories AS T2 ON T1.business_id = T2.business_id INNER JOIN Categories AS T3 ON T2.category_id = T3.category_id GROUP BY T2.business_id ORDER BY COUNT(T1.user_id) DESC LIMIT 10