The correct answer is d) Haiti.
The country name that best completes this passage is Haiti.
In July 1889 US, Frederick Douglass was appointed as the United States Minister Resident and Consul General of Haiti. He was designed by Republican President Benjamin Harrison. Douglass was minister to Haiti until 1891. Frederick Douglass was a supporter of abolitionist because he was born a slave. He also was an author and the words in the excerpt are his. He worked hard to finish slavery and to stop segregation in public places like schools or in the church.