Answer:
A. It brought about the decline of the Federalist Party.
Explanation:
The effect of the Hartford Convention is which was held between December 1814 to January 1815 was widely known to be based on President James Madison’s mercantile policies and the progress of the War of 1812, including the unacceptable position of the political situation of the country more specifically national government power shifting to South.
However, following the unexpected victory in the Battle of New Orleans, and the secret nature of the Hartford convention, brought about the decline of the Federalist Party.
I would say B monotheism and C writing system not yet deciphered
hope this helps
The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. ... Accordingly, while the United States extended diplomatic recognition to Texas, it took no further action concerning annexation until 1844, when President John Tyler restarted negotiations with the Republic of Texas.
Nathaniel Bacon and other western Virginia settlers were angry at Virginia Governor Berkeley for trying to appease the Doeg Indians after the Doegs attacked the western settlements. The frontiersmen formed an army, with Bacon as its leader, which defeated the Indians and then marched on Jamestown and burned the city.