What Will Be Displayed by the Following Program When the Button

Multiple Choice

What will be displayed by the following program when the button is clicked?
Private Sub btnDisplay_Click(...) Handles btnDisplay.Click
Dim s As Double
s = 0
For k As Integer = 1 To 5
If k / 2 = Int(k / 2) Then
s += k
End If
Next
txtBox.Text = CStr(s)
End Sub

A) 12
B) 9
C) 15
D) 6