Which statement about the sociotechnical systems theory is true? -Most organizations did not adopt the sociotechnical systems theory for management problems until the year 2000. -It was the first major approach to emphasize informal work relationships and worker satisfaction. -It was developed in the early 1950s by researchers from the London-based Tavistock Institute of Human Relations. -It emphasized the perspective of senior managers within an organization. -It emphasized a structured, formal network of relationships among specialized positions in an organization.