Implement the DivSales class that holds sales data for a division, with the array for the sales data by quarter, and a private static variable that holds the total sales for all sales divisions. Do not ask the user to enter the sales data. The program will create the array of six objects, and read the sales data below into the objects from a file called 'SalesFile.txt. The program will then prompt the user for the division number (1-6) and output the sales for that division, and the total sales for that division as shown below. Use functions as you see fit. No input validation is required. Add a loop in main so that multiple numbers can be input and "O" to quit. When the user enters 'O' to quit, output the total sales for the corporation (the private static variable value). Complete a Test Case ) document with tests and the outcomes when you ran the tests (see below). The program will use the class definition provided below in a separate *.h file, and use the class member functions to obtain the proper output (including the private static variable). // Declaration of the DivSales class for the *.h file class DivSales { private: static double corpSales; double divSales; public: double qtrs[4]; void setDivSales(double s) { divSales = divSales + s; } void setCorpSales(double s) { corpSales = corpSales + s; } double getDivSales() const { return divSales; } double getCorp Sales() const { return corpSales; } }; Tecum compares, }; // Static member variable definition double DivSales::corpSales; Output Format -tabs and spacing required: Select "E:\BCC\Fall 2020\CSE 112\Labs and Solutions CSE 11... Enter a division (1-6), or to quit: 3 Division #3 Quarter 1 sales: $1350.09 Division #3 Quarter 2 sales: $1351.10 Division #3 Quarter 3 sales: $1352.11 Division #3 Quarter 4 sales: $1353.12 Division #3 total Sales are: $5406.42 Enter a division (1-6), or to quit: 6 Division #6 Quarter 1 sales: $1650.21 Division #6 Quarter 2 sales: $1651.22 Division #6 Quarter 3 sales: $1652.23 Division #6 Quarter 4 sales: $1653.24 Division #6 total Sales are: $6606.90 Enter a division (1-6), or to quit: 0 Total corporate sales: $33639.00 execution time : 15.238 s Process returned @ (0x0) Press any key to continue. Date for "SalesFile.txt" 1150.01 1 151 Date Tor Salesriie.LXL 1150.01 1151.02 1152.03 1153.04 1250.05 1251.06 1252.07 1253.08 1350.09 1351.10 1352.11 1353.12 1450.13 1451.14 1452.15 1453.16 1550.17 1551.18 1552.19 1553.20 1650.21 1651.22 1652.23 1653.24 Test Case Document: A test case/results document is required for this project (10% of grade). What is a Test case