( )20. 執行下列 Visual Basic 程式片段,輸出結果為何?
(A) 5
(B) 6
(C) 7
(D) 8

```vba
Sub Main()
Dim Sum As Integer = GetSum(5)
Console.WriteLine(Sum)
End Sub
Function GetSum(ByVal N As Integer):
If N = 1 Then Return 1
If (N Mod 2 = 1) Then
Return GetSum(N * 3 + 1) + 1
Else
Return GetSum(N / 2) + 1
End 7f
End Function
```

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