The congress of racial equality a. was led by martin luther king jr. b. used boycotts in the 1960's to achieve integration. c. used sit-ins in the 1940's to encourage integration. d. was led by rev. ralph abernathy. i know it's not a or d because it was lead by niger innis. the answer is c, i just took the test and got it right. 

The correct answer is C. Used sit-ins in the 1940's to encourage integration.

Explanation:

The Congress of Racial Equality was an organization that emerged during the 20th century in the U.S. and aimed at supporting the Civil Rights Movement or the legal rights of the African American population. This was led by Niger Innis who was an African American activist and the organization was mainly known due to his pacifist protest that included using sit-ins as a way to protest that implied sit in different spaces and deny to leave one of the most important protests occurred in 1942 as members of the organization used sit-ins in a coffee shop in Chicago to protest the segregation rules that existed back then in coffee shops, restaurants, and other public places. Thus, the Congress of Racial Equality used sit-ins in the 1940's to encourage integration.

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.