单击命令按钮时，下列程序代码的执行结果为______。 Private Sub Proe1 (n As Integer，ByVa1 m As Integer) n=n Mod 10 m=m\ 10 End Sub Private Sub Command1_Click()Dim x As Integer Dim y As Integer x= 12 y = 34 Call Proe1 (x, y) Print x; y End Sub

A．12 34

B．2 34

C．2 3

D．12 3