A single-issue party, Good Luck!
The correct answer is b.universal because the actual definition for universal is- affecting, or done by all people or things in the world or in a particular group; applicable to all cases. Hope this helps! :)
The correct answer among all the other choices is Lack of weapons and livestock. These factors led to the fall of the empire of Ghana. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.