.....what can I have a more clear sentence on this question please I would be glad to help
All the options are correct.
As we know before Missouri Compromise of 1820, there were 11 free states and 11 save states and so there was a balance of power between North and South. The admission of Missouri as a slave state would result the imbalance. So we see Henry Clay, a congressman came with Missouri Compromise which provided for admission of Missouri as a slave state along with Maine as a free state in order to maintain the balance of power. It also prohibited slavery in the north of 36*30 parallel, excluding Missouri. So ultimately resolved the heated issue of the time in the Senate over slave states and free states. As it was a controversial act, it was later declared unconstitutional and was repealed by Kansas-Nebraska Act of 1854.
The Era of Good Feelings marked a period in the political history of the United States that reflected a sense of national purpose and a desire for unity among Americans in the aftermath of the War of 1812.
The answer is C. <span>Many of the ideas concerning separation of powers and protection of rights were implemented in the United States.</span>