Which DELETE statement is valid?

Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:

Which DELETE statement is valid?

A.
DELETE FROM employees
WHERE employee_id = (SELECT employee_id FROM employees);

B.
DELETE * FROM employees
WHERE employee_id=(SELECT employee_id FROM new_employees);

C.
DELETE FROM employees
WHERE employee_id IN (SELECT employee_id
FROM new_employees
WHERE name = ,,Carrey);

D.
DELETE * FROM employees
WHERE employee_id IN (SELECT employee_id
FROM new_employees
WHERE name = ,,Carrey);