<prompt> Special visceral efferent doesnt include2018A nucleus ambiguousB Dorsal nucleus of the Xth cranial nerveC Motor nucleus of Vth cranial nerveD Motor nucleus of VIIth cranial nerve  <response>: Special visceral efferent purely motor for the supply of muscles of facial expression, muscles of mastication and muscles of palate and pharynx, larynxNucleus ambiguous. Dorsal nucleus of vagus parasympathetic: it is a mixed nucleus, being both motor visceromotor and secretomotor and sensory. General visceral efferent fibres arise in the dorsal nucleus of the vagus. Ref:- BD chaurasia volume 3, pg num:-288,289 