单项选择题

有以下函数过程：
Function Gys (ByVal x As Integer， ByVal y As Integer) As Integer
Do While y＜＞0
Reminder = x Mod y
x = y
y= Reminder
Loop
Gys=x
End Function
以下是调用该函数的事件过程，该程序的运行结果是
Private Sub Command1_Click()
Dim a As Integer
Dim b As Integer
a = 50
b = 10
x=Gys (a，b)
Print x
End Sub

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