One way in which the Kingdom of Ghana facilitated the gold trade was by trading gold with slaves and other workers. Most of the trading was done with other African nations but some with Europeans.
If the yellow triangle is referring to the Star of David then the answer is B.
Both.
A variety of Federal programs, including the Clean Water Act, have delegated authority built in which means that the States enact the Federal programs.
So, both is the correct answer.
The had to change the way they did things such as cancelling plans etc.
