User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK，or any data definition language （DDL） command： 
SQL> SELECT job FROM emp 
2  WHERE job=’CLERK’ FOR UPDATE OF empno; 
SCOTT has opened another session to work with the database. Which three operations would wait when issued in SCOTT’s second session？（）

A.LOCK TABLE emp IN SHARE MODE;
B.LOCK TABLE emp IN EXCLUSIVE MODE;
C.DELETE FROM emp WHERE job=’MANAGER’;
D.INSERT INTO emp（empno，ename） VALUES （1289，’Dick’）;
E.SELECT job FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno;