Answer: b. the abdication of Agustin Iturbide
Explanation:
Agustín de Iturbide was the Mexican army general who united different forces that eventually took over Mexico and gained independence from Spain. After independence, iturbide became President and then a year afterward, emperor of Mexico.
His rivals and many in Congress were not happy with his new position however and he was eventually forced to abdicate. Texans did not mind this in the least bit because Iturbide had tried to impose more control on Texas, something the Anglo settlers in Texas did not want.
