Question 5 (4 points) Which of the following partial SELECT statements will require a GROUP BY clause? Choose all that apply. SELECT department_name, first_name, last_name, AVG(Salary), SUM(Salary) FROM Employment SELECT AVG(Salary), SUM( Salary) FROM Employment SELECT department_name, AVG(Salary), SUM(Salary) FROM Employment SELECT department_name, first_name, last_name FROM Employment