I found one which is René-Robert Cavelier
Answer:
Explanation:
American immigrant didn't want to convert in catholic, and they didn't want to free their slaves, in addition, the immigration was another important social factor in this conflict because Mexico wants to stop the English-speaking settlers.
In 1836 Mexico's President Antonio López want to impose abolishing slavery, but Santa Anna is took prisoners and sign a treaty recognizing the independence of Texas.
In 1845 Texas become a slave state of the United States.
Johnson was considered that there would be a communist takeover in Southeast Asia if the United States left Vietnam.
In my opinion, I would think that the first answer is correct because the other answers don't really make any sense.
Hopefully its right.