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),并要求按总成绩降序排列出来,正确的SELECT语句是______。
A.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE>=60 CROUP BY S# ORDER BY 2 DESC HAVING COUNT(*)>=4
B.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE>=60 GROUP BY S# HAVING COUNT(*)>=4 ORDER BY 2 DESC
C.
SELECT S#,SUM(GRADE)FROM SC WHERE GRADE>=60 HAVING COUNT(*)>=4 GROUP BY S# ORDER BY 2 DESC
D.
DELECT S#,SUM(GRADE)FROM SC WHERE GRADE>=60 ORDER BY 2 DESC CROUP BY S# HAVING COUNT(*)>=4