Which of the Following Is Not a Valid SQL Command?​

Multiple Choice

Which of the following is not a valid SQL command?​

A) ​INSERT INTO acctmantable
SELECT amid,amname,amedate,region
FROM acctmanager
WHERE amedate <= SYSDATE;
B) ​INSERT INTO acctmantable
(SELECT amid,amname,amedate,region
FROM acctmanager
WHERE amedate <= SYSDATE) ;
C) ​INSERT INTO acctmantable
AS (SELECT amid,amname,amedate,region
FROM acctmanager
WHERE amedate <= SYSDATE) ;
D) ​none of the above