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 FROMS，SC
WHERE S.S#=SC.S# AND C#='C2'
C．SELECT S.S#，SNAME FROM S,SC
&nb
D．SELECTS.S#，SNAME FROM S WHERE S.S#
IN(SELECT SC. S# FROM SC WHERE C#='C2')