I would say A. It would be difficult to find workers for jobs that people didn't desire. Like how minorities pick produce nowadays and you don't hear of white people picking produce.
Answer:
It was destroyed by the Almoravids, who took control in the country for the next ten years.
Explanation:
The sacking of Ghana by Almoravids in something that can be seen even as a holy war led to the decline of its power and its trade links. Although their rule lasted for only a couple of years, they weren't able to recover and to extent their trade once more as they did before this event.
Regents refused to give up power after ruling for child emperors
1676 - Nathaniel Bacon and other western Virginia settlers were angry at Virginia Governor Berkley for trying to appease the Doeg Indians after the Doegs attacked the western settlements. The frontiersmen formed an army, with Bacon as its leader, which defeated the Indians and then marched on Jamestown and burned the city. The rebellion ended suddenly when Bacon died of an illness.
