The answer is a. reunifying several kingdoms.
At the end of Tang Dynasty before Song Dynasty, The country was split into many kingdoms, the emperor of song dynasty also belonged to one of the kingdom. After his rise,he defeated the rest of the kingdoms one by one and finally reunifying the country.
The Articles of Confederation prevented the government from taxing, forming a defense, and provided no justice and law-making system. The Constitution formed a permission to tax and a tax regulation, allowed congress to form a defense system, and formed a bicameral legislative system. The Constitution also established the court systems and the supreme courts.
<span>Alexandre Pétion was the first president of Haiti.</span>
<span>Hope this helps </span>
<span>plz tell me if I am wrong</span>
To make it easier to travel from the pacific to the atlantic, or vice versa. before, sailors had to sail around south america.
B grew and collected food
