Which of the following statements is used when you want to add data to the end of an existing sequential file. A. Dim sw As IO.StreamWriter = IO.File.AppendText("DATA.TXT") B. Dim sw As IO.StreamWriter = IO.File.CreateText("DATA.TXT") C. Dim sr As IO.StreamReader = IO.File.AddText("DATA.TXT") D. Dim sr As IO.StreamReader = IO.File.OpenText("DATA.TXT")