有学生表Student(Sno char(8), Sname char(10), Ssex char(2), Sage integer, Dno char(2), Sclass char(6))。要检索学生表中“所有年龄小于等于18岁的学生的年龄及姓名”，SQL语句正确的是（）。
A、Select Sage, Sname From Student ;
B、Select * From Student Where Sage <= 18;
C、​​​Select Sage, Sname From Student Where Sage <= 18;
D、Select Sname From Student Where Sage <= 18;