Task: Text Categorization
Input (English): Question: In the parasympathetic system: 
 Options:  <0> The preganglionic neuron is in thoracic spinal cord. <1> Postganglionic neurons have short axons. <2> Postganglionic fibers release noradrenaline. <3> Postganglionic neurons have muscarinic receptors. <4> Numerous neurons innervate vascular smooth muscle of the extremities.
Output (English): biology