After a coup d’etat in spain overthrew the government, augustin de iturbide proclaimed

mexico’s independence and made himself emperor.
haiti’s independence and made himself emperor.
argentina’s independence and made himself emperor.
brazil’s independence and made himself emperor.

The correct answer among the choices is the first option. After a coup d'etat in Spain overthrew the government, Augustin de Iturbide proclaimed Mexico's independence and made himself emperor. He reigned for less than a year. His term determined the political struggles before and after independence.

The answer is william henry harrison pursued and defeated british forces retreating into canada.