I think, they rely on primary sources because these sources are original and more trustworthy
The answer is A. I believe this is correct
1
The 1842 Slave Revolt in the Cherokee Nation, then located in Indian Territory (Oklahoma) west of the Mississippi River, was the largest escape of a group of slaves to occur among the Cherokee. The slave revolt started on November 15, 1842, when a group of 20 African-American slaves owned by the Cherokee escaped and tried to reach Mexico, where slavery had been abolished in 1836. Along their way south, they were joined by 15 slaves escaping from the Creek in Indian Territory.
Louis XVI (Louis-Auguste; French pronunciation: [lwi sɛːz]; 23 August 1754 – 21 January 1793) was the last king of France before the fall of the monarchy during the French Revolution. He was referred to as Citizen Louis Capet during the four months just before he was guillotined. In 1765, upon the death of his father, Louis, Dauphin of France, he became the new Dauphin. Upon his grandfather Louis XV's death on 10 May 1774, he assumed the title King of France and Navarre, until 4 September 1791, when he received the title of King of the French until the monarchy was abolished on 21 September 1792.