The correct answer is a single ruler
Monarchy is a form of government, being the oldest in force today. In a monarchy, the king / queen or emperor / empress occupies the position of monarch and is usually head of state and may also be head of government. This variation will basically depend on the type of monarchy.
B is the answer they all had a common ancestor that directed the establishment of these civilizations
Answer: The correct answer is : Traditional and Autocratic
Explanation: The autocratic system concentrates power in a single figure, where its actions or decisions have no restrictions. In the 18th century, a crisis of conscience began in Europe, which gave rise to the Scientific Revolution, the Enlightenment, the Industrial Revolution and in general it was characterized by the era of revolutions.