if else confusion

I have a subroutine with the if then tree seen below.  Do you think this is a good way to code, or is there a better way to write this out?

Thanks!
 
Private Sub Main() If Not oldVersion Then Call SubA() If LanguageX Then Call SubA1() Else Call SubA2() End If Else Call SubB() End If Call SubC() End Sub
 
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