Question 3: Pay roll information system: Declare the base class 'employee' with employee's number, name, designation, address, phone number. Define and declare the function getdata() and putdata() to get the employee's details and print employee's details. Declare the derived class salary with basic pay, DA, HRA, Gross pay, PF, Income tax and Net pay. Declare and define the function getdatal() to call getdata() and get the basic pay. Define the function calculate() to find the net pay. Define the function display() to call putdata() and display salary details. Create the derived class object. Read the number of employees. Call the function getdatal)) and calculate() to each employees. Call the display() function