Which of the following is not an Internet protocol?

What will be the value of dblSum after the button btnAdd is clicked, assuming that 25 is entered by the user into txtNum1, and 35 is entered into txtNum2?

``` Private Sub btnAdd_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles btnAdd.Click Dim dblNum1, dblNum2, dblSum As Double dblNum1 = CDbl(txtNum1.Text) dblNum2 = CDbl(txtNum2.Text) dblSum = Sum(dblNum1, dblNum2) lblSum.Text = dblSum.ToString() End Sub Function Sum(ByVal dblNum1 As Double, ByVal dblNum2 As Double) as Double Return dblNum1 + dblNum2 End Function ``` a. 60 b. 50 c. 0 d. 70

A document created with LibreOffice Writer would be classified as a(n) OfficeDocument Text file.

Answer the following statement true (T) or false (F)