Answer:
D.) Cleared East Texas of Mexican Military and Authority
Explanation:
I'm not sure where you got the notion that Mexican forces won the Battle of Nacogdoches... They didn't and their defeat resulted to Texan resistance gaining control of much of Eastern Texas.
Push factors were ; few jobs, overpopulation, war, natural disasters. Pull factors were ; jobs, safety, better quality of life
The answer to your question is B. However the troops were eventually withdrawn from Vietnam due to disagreements from the American people.
so that the gods didnt get mad at them