Question

Which statement best explains how the idea of Manifest Destiny lead to the Mexican-American War?

Answer 1

The statement that best explains how the idea of Manifest Destiny led to the Mexican-American War would be that "Mexico was a barrier to achieving what many believed was America’s destiny to expand to the Pacific," since Manifest Destiny held that the US was "destined" to expand all the way to the West Coast. 

Answer 2

I believe the answer is: "Mexico was a barrier to achieving what many believed was America’s destiny to expand to the Pacific,

At that time, the government of Mexico refuse to sell their lands to united states due to the amount of oil reserve that they have in their territory. This become a hindrance for American government who at that time were willing to make huge investment to expand their territory, This lead to the Mexican american war that occurred for around 2 years.