检索最少有3名职工的每个部门的职工工资总额

A．SELECT部门号，COUNT( * )，SUM(工资)FROM职工表；　　HAVING COUNT( * )＞=3
B．SELECT部门号，COUNT( * )，SUM(工资)FROM职工表；　　GROUP BY部门号HAVING COUNT( * )＞=3
C．SELECT部门号，COUNT( * )，SUM(工资)FROM职工表；　　GROUP BY部门号SETCOUNT( * )＞=3
D．SELECT部门号，COUNT( * )，SUM(工资)FROM职工表；　　GROUP BY部门号WHERE COUNT( * )＞=3