I believe it's A.) A means of communication. It depends on what you're using it for in a sentence. Hope this helps! :))
Its really c because it would make more sense with a representative.
Answer:
Explanation: It is true that allegiance to a tribe is one handicap to national unity in Africa. When Africa was divided into countries, it did so with little consultation of local people.
Answer:
The costs of passing a bill that prohibits child labor is precisely that all the labor that children could have provided for the economy is forgone. So in pure economic terms, there is a loss of value, a sunk cost.
However, the benefit is both economic, and social. The economic benefit is that children will instead go to school, and educate themselves to become more productive workers in the future. And the social benefit is a fairer society, and wealthier too.
