Ganong's Review of Medical Physiology (25th ed) presents the Erlanger and Gasser classification of mammalian Nerve Fibres as such:
Type B Fibres are concerned with Preganglionic autonomic sensations, but there is no mention of this being sympathetic or parasympathetic. Does it mean that it is both? The table does specify it as sympathetic for the Type C Fibres, though. (I have tried searching this on google, but I can't seem to find anything specific.)