Which reason best explains the motivation for American expansiono

1. Economic opportunity: Many Americans saw expansion as a way to acquire new resources, markets, and trade routes in order to boost the economy and create new opportunities for wealth and prosperity.

2. Manifest Destiny: The belief that Americans had a divine right and duty to expand and settle the entire continent fueled the desire for territorial expansion.
3. National security: Some believed that expanding American territory would provide a buffer against foreign powers and protect the nation from potential threats.
4. Ideological and cultural superiority: Some Americans believed that expanding their territory and spreading their culture and values was a way to "civilize" and improve the lives of others.
5. Political reasons: Expansion was also seen as a way to gain more influence and power on the global stage and strengthen America's position as a world power.