What movement sought to end the practice of slavery in the United States?

The Abolitionist Movement was specifically focused on ending the practice of slavery in the United States. This movement gained momentum in the early 19th century and was characterized by a diverse group of activists, including both black and white individuals, who worked tirelessly to raise awareness about the injustices of slavery, advocate for immediate emancipation, and promote the rights of African Americans. Key figures such as Frederick Douglass, Harriet Tubman, and William Lloyd Garrison played significant roles in mobilizing public opinion against slavery and influencing legislation.

The Civil Rights Movement, while also focused on the rights and freedoms of African Americans, emerged much later, primarily during the 1950s and 1960s, seeking to end racial segregation and discrimination rather than addressing slavery directly. Similarly, the Suffragist Movement concentrated on women's right to vote and did not directly engage with the issue of slavery. The Labor Movement focused on workers' rights and labor conditions, which, although significant, did not specifically address the institution of slavery. Thus, the Abolitionist Movement is the correct choice as it directly sought to eradicate slavery in the United States.