Although job enrichment was successfully implemented in a firm's Toronto plant, managers of the plants in San Diego, Tulsa, and Pittsburgh chose not to enrich jobs.This is a problem of ________ change.

A) institutionalization
B) evaluation
C) diffusion
D) diagnosis
E) reengineering

The problem described is one of diffusion, which refers to the spread of an innovation or change (in this case, job enrichment) from its origin to other locations or units within an organization. The failure to adopt the change in other plants indicates a challenge in diffusing the successful practice from the Toronto plant to the San Diego, Tulsa, and Pittsburgh plants.