Which statement about custom service organizations is correct within the human services?

Which statement about custom service organizations is correct within the human services?
 
  A. All human service organizations are organized as custom service organizations.
  B. Developments such as managed care have led to the creation of more custom service organizations.
  C. Organizations that describe themselves as custom service organizations still function as production lines and linkages whenever it is feasible and ethical.
  D. Custom services are more likely to be found in the public sector than in the private sector.