The correct answer is A. The government withheld food and cash supplies from the Dakota.
Step-by-step explanation:
The Dakota are native American people that settled in regions such as North Dakota, South Dakota, Iowa, and nearby areas to the Missouri River. This native tribe was involved in a war against the United States from August of 1862 to December of the same year. Additionally, it is believed the war began because the United States government failed to give the Dakota people money and other supplies such as food that had been agreed between the Dakota people and the government in previous years as the Dakota gave up part of their territory. This situation caused the Dakota people to oppose the government and begin the war. According to this, the statement that describes a cause is A.