The West African nation of Liberia was founded under the auspices of


A. Dorothea Dix.
[B. the American Colonization Society.]
C. the American Peace Society.
D. William Lloyd Garrison.

is my answer correct in the brackets

Right.

Yes, your answer in the brackets is correct. The West African nation of Liberia was founded under the auspices of the American Colonization Society (ACS).

To arrive at this answer, you may have used the process of elimination by considering each option and eliminating the ones that do not align with the founding of Liberia. Dorothea Dix was an advocate for mental health reform in the United States, not directly involved in the founding of Liberia. The American Peace Society was focused on promoting pacifism and resolving conflicts through peaceful means, which is not directly related to the founding of Liberia. William Lloyd Garrison was an abolitionist and prominent advocate against slavery, but he was not directly involved in the establishment of Liberia.

Therefore, the American Colonization Society (ACS) is the correct answer, as it was involved in the founding and settlement of Liberia by colonists. The ACS aimed to encourage free African Americans and former slaves to return to Africa and establish a new settlement there.