Task: Text Categorization
Input (English): Question: Indicate which of the following statements about vascular smooth muscle is FALSE: 
 Options:  <0> Its main function is to maintain the tone of the vessels. <1> It is contracted by an increase in the intracellular calcium concentration. <2> Its contraction is controlled by the binding of calcium to troponin. <3> Its tone is controlled by the autonomic nervous system. <4> The endothelium modulates vascular smooth muscle tone.
Output (English): medicine