查询选修了课程号为“MATHS”的学生的姓名和年龄，若用下列SQL的SELECT语句表达时，错误的是( )。
A．SELECT SNAME,AGE FROM S WHERE S.S#=(SELECT SC.S#FROM SC WHERE C.C#='MATHS')
B．SELECT SNAME,AGEFROM SWHERE S.S#=(SELECT SC.S#FROM SC WHERE SC.C#='MATHS')
C．SELECT SNAME,AGE FROM S, SC WHERE S.S#=SC.S# AND SC.C#='MATHS' ORDER BY S.S#
D．SELECT SNAME,AGE FROM S, SC WHERE S.S#=SC.S# AND SC.C#='MATHS'