Consider the following Employee table.
Which of the following statements give the list of departments having average salary greater than 20000 from employee table?
(a)SELECT Dept_No,AVG(Salary) FROM Employee ORDER BY Dept_No HAVING AVG(Salary)>20000
(b)SELECT Dept_No,AVG(Salary) FROM Employee HAVING AVG(Salary)>20000
(c)SELECT Dept_No,AVG(Salary) FROM Employee GROUP BY Dept_No HAVING AVG(Salary)>20000
(d)SELECT Dept_No,AVG(Salary) FROM Employee WHERE AVG(Salary)>20000
(e)SELECT Dept_No,AVG(Salary) FROM Employee GROUP BY Dept_No WHERE AVG(Salary)>20000.
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