I hope you are talking about Fredrick Douglass. He got his last name from his marriage to Anna. So the correct option in regards to all the options provided in the question is option "c".
Fredrick Douglass was an escaped slave and before his
marriage with Anna, he lived with Mary and Nathan Johnson in New Bedford. He
also used their last name in his marriage license. His last name was taken from
the Lady of the Lake written by Sir Walter Scott.
