Which of the Following Is True of Regional Coordinating and Planning

Which of the following is true of regional coordinating and planning councils?

A) They are involved in the practice of absorbing neighboring areas into large cities.
B) They bring locally elected officials together who devote time and resources to physical planning.
C) They enable multiple cities to share services.
D) They help multiple cities establish an expert organization to run services in all the cities.
E) They help establish units of government to provide one or more particular services for a regional area.