假定有如下事件过程：Private Sub Form. Click（)Dim x As Integer, n As Integerx=1n=0Do While x

假定有如下事件过程： Private Sub Form. Click() Dim x As Integer, n As Integer x=1 n=0 Do While x＜28 x=x*3 n=n+1 Loop Print x, n End Sub 程序运行后，单击窗体，输出结果是______。

A．81 4

B．56 3

C．28 1

D．243 5