求至少有两个职工的每个仓库的平均工资

A、SELECT 仓库号,COUNT(*),AVG(工资)FROM 职工表; HAVING COUNT(*)>=2

B、SELECT 仓库号,COUNT(*),AVG(工资)FROM 职工表; GROUP BY 仓库号 HAVING COUNT(*)>=2

C、SELECT 仓库号,COUNT(*),AVG(工资)FROM 职工表; GROUP BY 仓库号 SET COUNT(*)>=2

D、SELECT 仓库号,COUNT(*),AVG(工资)FROM 职工表; GROUP BY 仓库号 WHERE COUNT(*)>=2