Who was fredrick douglas and what did he do to slavery? pls hurry

With the North no longer obliged to return slaves to their owners in the South, Douglass fought for equality for his people. He made plans with Lincoln to move liberated slaves out of the South. During the war, Douglass also helped the Union cause by serving as a recruiter for the 54th Massachusetts Infantry Regiment.

the answer wold be b) travel among nations should be regulated by an international organization