The special purpose government or other wise known as special district defines as a specialized service where they provide services in a designated area, they have governing boards and uses public funds as they accomplished their assigned functions legislatively. One of example of this in the following is letter A, regional library.
They are talking about B because no one knows what the future will be like. hope this helps! Everything other than b is not true becuase they are past events, the future has not happened.