Final answer:
Unable to provide a specific answer without additional context or historical documentation directly related to the 1971 General Council in Kansas City.
Step-by-step explanation:
The question refers to a significant change that occurred at the 1971 General Council in Kansas City regarding the organization of the General Council. It appears that none of the listed options directly correspond to the provided references, which talk about various administrative and governance reforms in different contexts such as the United Nations, European religious movements, U.S. Civil Service reform, and local government administration systems. Therefore, I am unable to confirm which specific change took place at the 1971 General Council without additional context or historical documentation directly related to that event.