The answer for this one would be C! Hope it helps :)
North-east Africa is where you would find it
Answer:
The answer you're seeking, from my knowledge, is known as "Going Public."
Explanation:
Presidents are uniquely positioned to promote themselves and their polices directly to the public. Using sympathetic crowds as a backdrop, a president can rally public opinion to his side, along the way delivering a subtle yet unmistakable message to his intended audience in Congress. Samuel Kernell shows how "going public" remains a potent weapon in the president’s arsenal, both for advancing his own agenda and blocking initiatives from his political adversaries in Congress.
I believe the answer is: catgut tied to crude metal wires
The catgut is made by the intestines of mammals such as horse or sheep. Ancient Egypt was among the first one to use this method in order to preserve the teeth.
For wealthier citizens, they might use a more expensive metal for the braces. The Etruscans for example use gold as a form of brace in order to prevent tooth collapse.