有学生表 Student(S# char(8), Sname char(10), Ssex char(2), Sage integer, D# char(2), Sclass char(6)) 。要检索学生表中“所有年龄小于等于 19 岁的学生的年龄及姓名”, SQL 语句正确的是 _________ 。
A.
Select Sage, Sname From Student Where Sage <= 19;
B.
Select * From Student Where Sage <= 19;
C.
Select Sage, Sname From Student;
D.
Select Sname From Student Where Sage <= 19;