Task: Text Categorization
Input (English): Question: The clinical specificity of an analytical parameter (test), with respect to a certain pathology, is defined as: 
 Options:  <0> The mean concentrations of this test in healthy patients. <1> A pathological concentration of the test in the presence of the disease. <2> A pathological concentration of the test in the absence of the disease. <3> A normal concentration of the test in the absence of the disease. <4> A normal concentration of the test in the presence of the disease.
Output (English): chemistry