Answer:
Ida B. Wells was an African American journalist, abolitionist and feminist who led an anti-lynching crusade in the United States in the 1890s. She went on to found and become integral in groups striving for African American justice. She continued her anti-lynching campaign and began to work tirelessly against segregation and for women's suffrage. She helped block the establishment of segregated schools in Chicago.
Hope this helps!!! ^_^
It's got to be C because none of the others relate to collaboration, but I'd say if you were unsure about this answer then the only other sensible one could be B, but I'd go with C.
D. they establish a rough, untamed setting