What contributed the most toward Hernán Cortés's first victory against the Aztecs?

Choices? im thinking spain but with no choices its a bit vague 

Here are some q and a’s about medieval christian europequestionthe fall of the western roman empire contributed most directly to which circumstance? answerthe division of western europe into small germanic kingdomsquestionwhich best summarizes the impact of the vikings on western europe? answerthey burned and looted, but also established trade routes and settled in western europe.questionwhich characteristic of the development of the political and social system of feudalism best summarizes the life of knights and nobles? answeras vassals, they swore loyalty and provided military service.question which of the following best describes how feudalism would look on a map? answer a patchwork quilt of many small, misshapen patches.question which of the following best describes the impact of the manor system on peasant families? answer men, women, and children worked together for long hours in farm fields.question how did the eastern orthodox church differ from the roman catholic church? select all that apply.answer the eastern orthodox church conducted services in greek and used icons in church teachings.question how might the reconquista have affected spain's economic and cultural life? answer expelling jews and muslims, including business men, probably weakened the economy and made the culture less diverse.question how did changes in agricultural production affect medieval europe? answer fields became more productive, spurring population growth.question how did the magna carta limit the power of the english king? answer by subjecting the monarchto the rule of lawquestion which compromise resulted from the concordat of worms? answer the church was granted the power to elect and invest bishops, but the emperor could invest them with fiefs.question how did william increase royal power in england? answer he kept land for himself.