What will be the output when the button is clicked on?

```
Private Sub btnDisplay_Click(...) Handles btnDisplay.Click
Dim first, middle, last As String
first = "Augusta"
middle = "Ada"
last = "Byron"
Initials(first, middle, last)
End Sub
Sub Initials(c As String, b As String, a As String)
Dim theInitials As String
theInitials = a.Substring(0, 1) & b.Substring(0, 1) &

c.Substring(0, 1)
txtBox.Text = theInitials
End Sub
```
(A) AAB
(B) BAA
(C) abc
(D) ABA


(B) BAA

Computer Science & Information Technology

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