The answer for you would be B, City dwellers could attend schools.
Answer: a
Explanation: because a classified document means it's important
Answer:
The answer is be D, disagreement over the Mexican-Texan border.
Explanation:
Mexicans had shot Americans on what they thought was Mexico's side of the border, but the Americans thought the Mexicans had shot them on United States side of the border.
John C. Calhoun was the South Carolinian politician that became known as the "father of nullification"
Explanation: The Olmecs were the earliest known Mesoamerican civilization. They were are credited with being the first to do the following: bloodletting and maybe human sacrifices, the invention of popcorn, zero, and might have been the inventor of the compass