Private Sub Form_Click()
  Dim A(1 To 3) As String
  Dim c As Integer
  Dim j As Integer
  A(1) = "3"
  A(2) = "6"
  A(3) = "9"
  c = 1
  For j = 1 To 3
    c = c + Val(A(j))
  Next j
  Print c
End Sub
程序运行后，单击窗体，在窗体上显示的值是（    ）。
A、10 B、19
C、16 D、17