What Will Be the Output of the Following Program When $x , y , z$

Multiple Choice

What will be the output of the following program when the button is clicked? Private Sub btnDisplay_Click(...) Handles btnDisplay.Click

Dim $x , y , z$ As Double
$x = 3$
$y = 3$
If $x > y$ Then
$\quad z = x + y$
Else
$\quad z = y - x$
End If
txtBox. Text = CStr $( z )$
End Sub

A) 6
B) 3
C) 0
D) No output