The rule of the qin emperors (221-206 bce) led to a significant development in china which future rulers also adopted. what was that development? a) a cultural 'golden age' began in china. b) china became a unified state with one ruler. c) china went to war with the mongols and defeated them. d) confucianism was adopted as the official state religion.

China became a unified state with one ruler.

Option B.

Explanation:

During the time of Qin dynasty of China which started in 221 BCE and ended in 206 BCE, there were huge developments and changes that took place in China.

One of the best development that took place during that time was the unification of the state. This dynasty saw the ruling of only one ruler in the whole empire which resulted in the unifying all the people. The emperor of this dynasty who is known as the creator of first unified Chinese empire was Shihuangdi.

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.