Consume WCF services

You need to build a client-side proxy class in VB.NET for a WCF Service named TestService that is hosted by one of your vendors. Which of the following options would accomplish that task? (Choose all that apply)

Use the ChannelFactory class.
Use the Svcutil.exe command-line tool with the following command: Svcutil.exe http://www.myvendor.com/TestService.svc
Use the Add Service Reference dialog box.
Use the Svcutil.exe command-line tool with the following command: Svcutil.exe /l:visualbasic http://www.myvendor.com/TestService.svc.