What will be the outcome of the following code, when the user enters c in the InputBox? Dim letter As String letter = InputBox("Enter A, B, or C") letter = letter. Toupper If letter = "A" Then txtOutput.Text = "A, my name is Alice" Els f letter = "B" Then txtOutput.Text = "To be, or not to be ElseIf letter = "C" Then txtOutput. Text = "Hello" Else txtOutput.Text = "Not a valid letter" End If A. my name is Alice Hello To be, or not to be Not a valid letter