[单选题]
检索学生姓名及其所选修课程的课程号和成绩。正确的SELECT语句是______。
A.SELECT S.SN,SC.C#,SC.GRADE FROM S WHERE S.S#=SC.S#
B.SELECT S.SN,SC.C#,SC.GRADE FROM SC WHERE S.S#=SC.GRADE
C.SELECT S.SN, SC.C#,SC.GRADE FROM S,SC WHERE S.S#=SC.S#
D.SELECT S.SN,SC.C#,SC.GRADE FROM S,SC