Which of the following statements is not true? a. sympathetic has extensive branching of preganglionic fibers; parasympathetic has minimal branching of preganglionic fibers. b. sympathetic ganglia are within a few centimeters of the cns; parasympathetic are close to visceral organs served. c. sympathetic origin is craniosacral; parasympathetic is thoracolumbar. d. sympathetic division has short preganglionic and long postganglionic fibers; parasympathetic has long preganglionic and short postganglionic fibers.