设有学生表S(学号,姓名,性别,年龄),查询所有年龄小于等于18岁的女同学、并按年龄进行降序排序生成新的表WS,正确的SQL命令是______。
A.SELECT*FROM S WHERE性别=’女’AND年龄<=18 ORDER BY 4 DESC INTO TABLE WS
B.SELECT*FROM S WHERE性别=’女’AND年龄<=18 ORDER BY年龄INTO TABLE WS
C.SELECT*FROM S WHERE性别=’女’AND年龄<=18 ORDER BY’年龄’DESC INTO TABLE WS
D.SELECT*FROM S WHERE性别=’女’OR年龄<=18 ORDER BY’年龄’ASC INTO TABLE WS