有三个表即学生表S、课程表C和学生选课表SC，它们的结构如下：
S(S#，SN，SEX，AGE，DEPT)
C(C#，CN)
SC(S#，C#，GRADE)
其中：S#为学号，SN为姓名，SEX为性别，AGE为年龄，DEPT为系别，C#为课程号，CN为课程名，GRADE为成绩。
检索选修四门以上课程的学生总成绩(不统计不及格的课程)，并要求按总成绩的降序排列出来。正确的SELECT语句是________。

A、SELECT S#，SUM(GRADE)FROM SC WHERE GRADE＞=60 GROUP BY S# ORDER BY 2 DESC HAVING COUNT(*)＞＝4 WHERE C#=“C2”AND GRADE＞＝ (SELECT GRADE FORM SC WHERE C#=“C2”)
B、SELECT S#FORM SC WHERE C#=“C2”AND GRADE IN (SELECT GRADE FORM SC WHERE C#=“C2”)
C、SELECT S#FORM SC WHERE C#=“C2”AND GRADE NOT IN (SELECT GRADE FORM SC WHERE C#=“C2”)
D、SELECT S#FORM SC WHERE C#=“C2”AND GRADE＞＝ALL (SELECT GRADE FORM SC WHERE C#=“C2”)