Answer:
I think it's b
Explanation:
altho I don't know what the sentence your replacing or the article but b looks like a good choice
Athens believed that every free-man should have a say in the government, so they made an assembly as the first step to create a democracy. I hope this helps to start you out.
The PPC (or PPF, same thing) shows economic growth because it outlines exactly what the economy can produce at that moment. When it shifts outward in any way (be it towards consumer and capital goods, or X and Y), that MUST be because of economic growth.
Answer: In 1492, a Spanish-based transatlantic maritime expedition led by Italian explorer Christopher Columbus encountered the Americas, continents which were virtually unknown to and outside of the Old World political and economic system. The four voyages of Columbus led to the widespread knowledge that a continent existed west of Europe and east of Asia. This breakthrough in geographical knowledge inaugurated a period of exploration, conquest, colonization, biological exchange, and trans-Atlantic trade, the effects and consequences of which persist to the present, and are sometimes cited as the beginning of the modern era
Explanation: