有如下事件过程：
Function UNC (ByVal x As Integer，ByVal y As Integer) As Integer
Do While y＜＞0
sic=x/y
x=y
y=sic
Loop
UNC=x
End Function
以下是该函数的调用过程，该程序的运行结果是( )。
PriVate Sub COmmand1_Click()
Dim a As Integer
Dim b As Integer
a=12
b=2
x=UNC (a，b)
Print x
End Sub