What secures the machines involved with data transportation that requires the sender to install software on the machine (receiver)?

PowerPoint's ________ feature allows you to locate and open a file that has been automatically saved if your system suddenly shuts down

Fill in the blank(s) with correct word

Which of the following statements is used when you want to add data to the end of an existing text file?

(A) ``` Dim sr As IO.StreamReader = IO.File.OpenText("Data.txt") ``` (B) ``` Dim sr As IO.StreamReader = IO.File.AddText("Data.txt") ``` (C) ``` Dim sw As IO.StreamWriter = IO.File.CreateText("Data.txt") ``` (D) ``` Dim sw As IO.StreamReader = IO.File.AppendText("ata.txt" ```