![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-53/ti_inject-812ce.png)
查询选修了课程号为/'C2/'的学生号和姓名,若用下列SQL的SELECT语句表达时,哪一个是错误的?______。
A.
SELECT S.S#,SNAME FROM S WHERE S.S#=(SELECT SC.S# FROM SC WHERE C#=/'C2/')
B.
SELECT S.S#,SNAME FROM S,SC WHERE S.S#=SC.S# AND C#=/'C2/'
C.
SELECT S.S#,SNAME FROM S,SC WHERE S.S#=SC.S# AND C#=/'C2/'ORDER BYS.S#
D.
SELECT S.S#,SNAME FROM S WHERE S.S# IN(SELECT SC.S# FROM SC WHERE C#=/'C2/')