检索学生表中“性别”为“男”的学生记录，将结果保存到文本文件xb中，SQL语句为：
SELECT * FROM 学生表 WHERE 性别="男"______xb

A．SELECT 仓库号,COLINT(*) AS 人数,AVG(工资) AS 平均工资 FROM 职工;
GROUP BY 仓库号 WHERE COUNT(*)＞=4
B．SELECT 仓库号,COUNT(*) AS 人数,AVG(工资) AS 平均工资 FROM 职工;
GROUP BY 仓库号 HAVING COUNT(*)＞=4
C．SELECT 仓库号,COUNT(*) AS 人数,AVG (工资) AS 平均工资 FROM 职工;
GROUP BY 职工号 WHERE COUNT(*)＞=4
D．SEIECT 仓库号,COUNT(*) AS 人数,AVG(工资) AS 平均工资 FROM 职工;
GROUP BY 职工号 HAVING COUNT(*)＞=4