In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Q: Question: The main indication for using 4 drugs in the initial treatment of tuberculosis is:
Options: <0> Affectation of the central nervous system. <1> High prevalence of primary resistance to isoniazid. <2> Cavitated and extensive pulmonary tuberculosis with large bacillary load. <3> Disseminated tuberculosis associated with HIV infection. <4> Extrapulmonary tuberculosis in immunodepressed patients of any origin.
A:
medicine