单击命令按钮时，下列程序代码的执行结果为______ 。
Public Function MyFune(m As Integer，n As Integer) As Integer
Do While m＜＞n
Do While m＞n
m=m-n
Loop
Do While m＜n
n=n -m
Loop
Loop
MyFunc=m
End Function
Private Sub Command1_Click()
Print MyFunc(24, 18)
End Sub

A．2

B．4

C．6

D．8