Communist philosophy teaches that people should.
a. obey their rulers because the have authority from heaven
b. place the interests of the group before the interests of the individual
c. reject technology and western values
d. revere their ancestors and religious traditions

Communist philosophy teaches that the people should place the interest of the group before the interest of the individual .

Explanation:

* Communist philosophy is not something that is non individualistic.however, it always places the interest of the society above the interest of the individual.

* It makes sure that the whole community as a whole is benifitted.

* The main aim is to create a stateless and a classless society.

*Karl marx and Friedrich Engels are the main preachers of communist philosophy

the correct answer is b

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.