In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests.
King Almamy of Futa Toro passed a law forbidding anyone from transporting slaves through his area. He did it to resist the slave trade. The correct choice is the letter
d. He passed a law forbidding anyone from transporting slaves through his area.
I hope it helps, Regards.