What will be displayed by the following program when the button is clicked?
Private Dim s s=0 For k
Sub btnDisplay_Click(...) Handles btnDisplay.Click As Double
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