Which of the following wars was caused by a fight over the annexation of texas and the borders of texas

A. the spanish american war

B. the mexican american war

C. the sencond opium war

D. the first seminole war

Option B.

Explanation:

The Mexican-American war, is the right answer.

The Mexican-American War was an equipped battle between the U. S. and Mexico in the period between 1846 to 1848. It developed in the course of the annexation of Texas by the United States of America in 1845, that the Mexican government did not formally recognize. The main reasons included the annexation of Texas and the U. S. and Mexico's disagreement about the southern border of Texas.

The answer to your question is,

B. The Mexican american war.