One consequence of the us congress voting to annex texas was that
a) mexico decided to grant texas its independence to stop the annexation.
b) the united states gained the debt and border problems texas already had.
c) there were no more disputes over the balance of slave and free states.
d) mexico settled its border dispute with texas to avoid a possible war.

The correct answer is B) the United States gained the debt and border problems Texas already had.

The border problems between Texas and Mexico were fairly consistent during the middle of the 1800's. This was especially true for the territory near the Rio Grande River. After Polk moved troops into this disputed area and an attack by the Mexican military, the US entered a war against Mexico. This is now known as the Mexican-American War. These border disputes would be solved by the end of this war and the signing of the Treaty of Guadalupe Hidalgo.