In this assignment, you are asked to develop a real-time currency rate web service using WCF. Clients should be able to retrieve latest exchange rates of 3 different currencies such as USD, Euro, and Pound for TRY. And this service should return the latest rates to client immediately. Usage of SOAP or Rest approaches are both acceptable in this assignment. Step 1: Create a data source for storing three exchanges; USD, Euro, and Pound. Your data source may be in a form of XML, JSON or a TXT file due to your selection. Each exchange rate is stored with the date and time information. Insert at least 2 records for 3 currencies with different time domains. Step 2: Develop your web service application that returns the latest exchange rates from its data source with using WCF. Note that the service first should find the latest records from its data source that you build in step 1, then transmit to clients. Step 3: Add a section that shows the exchange rates in your e-commerce application. Your web application will act as a client to real-time currency rate web service and the transmitted currency rates will be shown on the main page of this e-commerce application