I WILL GIVE YOU BRAINLEAST Read each question and choose the best answer.

Which event or development caused the United States and Spain to come into conflict over Texas in the early 1800s?
Responses

A. The United States successfully invaded New Spain.

B. The United States mistreated Spanish filibusters in Texas.

C. The United States emerged as a dominant world power after a war with France.

D. The United States purchased the Louisiana Territory.

The answer is D

Could I get brainlist?

Explanation:

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.