查询语句中，错误的是（　　）。
单选题 (3 分) 3分
A.
SELECT Sno, COUNT(*) FROM SC GROUP BY Sno

B.
SELECT Sno FROM SC GROUP BY Sno WHERE COUNT(*) > 3

C.
SELECT Sno FROM SC GROUP BY Sno HAVING COUNT(*) > 3

D.
SELECT Sno FROM SC GROUP BY Sno