What effect did direct United States' involvement in Vietnam have on the general population in the United States during the 1960s and 1970s? A
The federal government suspended the civil liberties of the general population and declared martial law.
B
Several anti-war groups run by students, businesses, and veterans banded together to create the largest anti-war movement the United States had ever known to protest the
Vietnam war.
С
Anti-war students bombed several ROTC buildings on college campuses, and returning veterans were treated with hostility and disgust.
D
Both B and C

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.

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

i believe it is the second one.   if correct plz mark brainliest.