You have been asked to develop an application to calculate the weekly pay for each of a firm's employees and issue payroll checks. You are using object-oriented programming (OOP) to develop this application. (a) Describe at least two classes that you could use in this application and what each class would represent in the real world. (b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property. (c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method.