Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) Which three statements inserts a row into the table? (Choose three)

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  1. INSERT INTO employees VALUES (NULL, 'JOHN','Smith');

  2. . INSERT INTO employees( first_name, last_name) VALUES ('JOHN','Smith');

  3. INSERT INTO employees VALUES ('1000','JOHN','NULL');

  4. INSERT INTO employees(first_name,last_name, employee_id) VALUES ('1000, 'john','Smith');

  5. . INSERT INTO employees (employee_id) VALUES (1000);

  6. INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'john',");

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Correct Option: C,E,F

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