what part did the alliance system play in the events that led to world war i?\no countries that were in…

what part did the alliance system play in the events that led to world war i?\no countries that were in alliances with other countries were obligated to support their allies when war was declared.\no alliances enabled countries to cooperate in establishing large colonial empires.\no countries that were in alliances with other countries were guaranteed that they would not have to go to war.\no the countries in one alliance system were not allowed to trade with countries in competing alliances, which further divided europe.
Answer
Brief Explanations:
La sistema de alianzas en la Europa pre - Primera Guerra Mundial creó obligaciones entre los aliados. Cuando un país declaró guerra, sus aliados estaban obligados a participar. Esto hizo que un conflicto local se ampliara rápidamente en un conflicto global. Las otras opciones son incorrectas: las alianzas no se centraisaron en la creación de imperios coloniales, no garantizaron la ausencia de guerra y no impidieron el comercio entre aliados rivales de manera generalizada.
Answer:
A. Countries that were in alliances with other countries were obligated to support their allies when war was declared.