Your question was :
An important african american leader who published the pro-abolition paper north star was
a. david walker.
c. frederick douglass.
b. henry highland garnet.
d. william wells brown.
I believe that the answer is B. Almost everyone knows who Frederick Douglass is and his influence in slavery, mostly due to the common core teaching of him throughout grade school. If you study deeper into him and his work, However, you'll find that The North Star is one of his most prized accomplishments. Hope this helps! ;)