查询每个学生及其选修课程的情况,下列语句最恰当的为( ) (5.0分) A. SELECT Student.*,SC.* FROM Student,SC WHERE Student.Sno = SC.Sno B. SELECT Student.Sno,Sname,Ssex,Sage,Sdept,Cno,Grade FROM Student,SC WHERE student.Sno = SC.Sno C. SELECT Sno,Sname,Ssex,Sage,Sdept,Cno,Grade FROM Student,SC WHERE student.Sno = SC.Sno