单项选择题

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

A.0
B.6
C.2
D.80