单选题：设有Teachers表，该表的定义如下：

设有Teachers表，该表的定义如下：

CREATE TABLE Teachers(
Tno CHAR(8) PRIMARY KEY,
Tname VARCHAR(10) NOT NULL,
Age TINYINT CHECK(Age BETWEEN 25 AND 65) )


下列插入语句中，不能正确执行的是：



A.
INSERT INTO Teachers VALUES('T100','张鸿',NULL)

B.
INSERT INTO Teachers(Tno,Tname,Age) VALUES('T100','张鸿',30)

C.
INSERT INTO Teachers(Tno,Tname) VALUES('T100','张鸿')

D.
INSERT INTO Teachers VALUES('T100','张鸿')



答案：D