Since nobody learned what you learned you're going to have to do this one on your own sorry :/
Answer:
In the beginning, the Texans felt they could win the battle. However, as time wore on and the Mexican army increased and no reinforcements arrived, the Texans made a vow to fight until the bitter end to honor their belief that Texas should be independent from Mexican rule. They felt they were defending Texas and the Texan way of life and decided to stand up for their beliefs rather than run
Explanation:
I think that the answer is a. They became entangled in civil wars due to the political crisis.
E. one of the american states?