阅读下面的程序： Private Sub Form_Click() Dim Check， Counter Check=True Counter=0 Do Do While Counter ＜ 20 Counter=Counter + 1 If Counter=10 Then Check = False Exit Do End If Loop Loop Until Check = False Print Counter， Check End Sub 程序运行后，单击窗体，输出的结果为
A．15 0
B．20 -1
C．10 True
D．10 False