Janet works as a Software Developer for Blue Well Inc.

Janet works as a Software Developer for Blue Well Inc. The company management wants its project team members to be registered so that they can access the company's Website. To ensure that the team members can work together effectively, Janet creates an XML Web service named MyWebService by using Visual Studio .NET. She wants to ensure that the team members have a valid username and password in order to maintain strict security against unauthorized access. Which of the following authentication methods will Janet implement in her application to accomplish this task?