What is the primary significance of the African Burial Project?

What is the primary significance of the African Burial Project?
 
  a. It has provided information on the physical brutality of slavery and the attempt of various Africans to retain their cultures even through burial rituals.
  b. It has provided a full understanding of the economic commerce and trade networks of slavery in New York.
  c. It has uncovered the importance of burial rituals for individuals living during this historical period.
  d. It has provided information on the Underground Railroad that operated throughout the eastern half of the United States.
  e. It has provided an area where future forensic anthropologists can be trained.