4. There are four practical benefits from using systems thinking and drawing a system map, which of these should not be included. a. Researchers may discover that relationships at first thought to be of secondary importance are of primary importance. b. Drawing a system map and locating the disciplines on it that one believes are relevant enables the researcher to more easily identify other relevant disciplines that may have been overlooked earlier. c. A system map can reveal the existence of a system that did not initially seem to be a system. d. Drawing a system map helps the researcher understand how the system operates the way it does, not why the system behaves the way it does.