Implement the following data integrity.

q EmployeeID, RegionID and TertitoryID should be unique (Apply Identity property for these columns).

q TitleOfCourtesy field should allow Mr. Mrs. Prof. Dr. values in [HumanResource].[Employees] table

q HomePhone default value should be ‘000-000000’ if no phone value is specified in [HumanResource].[Employees] table

q Region default value should be ‘WA’ if no region value is specified in [HumanResource].[Employees] table.

q BirthDate should be greater than current date in [HumanResource].[Employees] table.