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