I think its c I am not sure
the answer is to mobilize
The cause of the increasingly tense relations between the mexican government and the american residents in texas after 1830 was mainly the increasing american immigration, that brought with it many cultural and social conflicts, since the Mexican natives became the minority in Texas, reaching only 7800 against the 30,000 English-speaking inhabitants, bringing as a consequence a conflict for the independence of Texas and then the annexation to the United States of America.
The correct answer is C. The existence of racially prejudiced attitudes found in areas of the United States.
Racially prejudice attitudes were really common and the Civil Rights movement helped to reduce them. This can be seen in:
- racial segregation on public transportation - fought by the Civil Rights Movement with the Montgomery Bus Boycott
- discriminatory economic policies in Alabama City - fought by the Civil Rights Movement with the Birmingham Campaign.
- lack of voting rights - fought by the Civil Right Movement on many marches, especially the Bloody Sunday
b.) powers that allow the each branch to curb the others