The Liberty Party was formed by:

A) The American and Foreign Anti-Slavery Society
B) The American Colonization Society
C) William Lloyd Garrison
D) Frederick Douglass

The Liberty Party was formed by the American and Foreign Anti-Slavery Society in 1839. It was the first political party in the United States to focus primarily on the abolition of slavery. William Lloyd Garrison and Frederick Douglass were both prominent abolitionists, but they were not directly involved in the formation of the Liberty Party. The American Colonization Society, while also focused on ending slavery, believed in the resettlement of African Americans back to Africa and did not support the same approach as the Liberty Party in terms of political advocacy.