Answer:
The escalating controversy over the expansion of slavery into the territory acquired from Mexico
Explanation:
The escalating controversy over the expansion of slavery into the territory acquired from Mexico prompted South Carolina's secession crisis of 1850 - 51. The Compromise of 1850 and the lack of broad-based support for secession in the South ended this crisis, but secessionists awaited their next opportunity.
Option D is the correct one
In the early 19th century, Napoleon's occupation of Spain led to the outbreak of revolts all across Spanish America. On September 16, 1810, Miguel Hidalgo y Costilla, a Catholic priest, launched the Mexican War of Independence with the issuing of his Grito de Dolores, or “Cry of Delores.
