在窗体上画一个名称为Labell的标签，然后编写如下事件过程。
Private Sub Form_Click( )
Dim arr(10, I0) As Integer
Dim i As Integer, j As Integer
For i = 2 To 4
For j =2 To 4
arr(i,j) =i*j
Next
Next
Labell. Caption = Str(arr(2,2) + arr(3,3) )
End Sub
程序运行后，单击窗体，在标签中显示的内容是

A) 12
B) 13
C) 14
D) 15

三一定律