This screenshot shows the Sort Columns window. The following columns appear under Available Columns: EMPLOYEE_ID FIRST_NAME EMAIL PHONE_NUMBER HIRE_DATE JOB_ID SALARY COMMISSION_PCT MANAGER_ID DEPARTMENT_ID There are four arrow buttons - >, >>, <, and <<. Under Selected Columns there is one column called LAST_NAME (asc). The Ascending radio button is selected. Descending, Nulls First and Nulls Last are unchecked. Additionally, there are six more buttons - Delete, Delete All, Select, Help, OK, and Cancel. The OK button is being clicked.