The correct answer is D.
The 13th amendment of the United States Constitution was ratified in 1865, after the American Civil War.
This amendment established the formal abolition of slavery and was approved by President Abraham Lincoln, who had started fighting slavery through the Emancipation Proclamation in 1963.
Thoreau, who believed this poll tax supported the Mexican-American war and the expansion of slavery into the Southwest, had stopped paying this tax in 1842 but the sheriff, Sam Staples, failed to take action against him for several years.
Explanation:
the personnel of a business or organization, regarded as a significant asset in terms of skills and abilities
