<span>Kings at the time usually didn't have heirs to the throne, because of this by killing the king you bring confusion to the country. No one knows what to do and everyone wants to be the new leader. So the king dying was a great chance for Alexander to take over Persia....... HOPE IT HELPS</span>
I would say your answers are land, labor, credit, and people. I hope this helps. :)
<em><u>Syed Ahmed Khan was one of the leading figures of Muslim India, and the Revolt of 1857 was the defining moment of his life.</u></em>
