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.

Question: As to the height of the plate (H) in a column chromatographic separation it can be said that: 
 Options:  <0> It is inversely proportional to the variance (standard deviation of the band). <1> It is directly proportional to the number of theoretical plates and inversely proportional to the length of the column. <2> It is directly proportional to the variance and inversely proportional to the distance traveled by the center of the band to the detector (L). <3> It is directly proportional to the variance and distance traveled by the center of the band to the detector (L). <4> It does not depend on the variance or the distance traveled by the center of the band.
pharmacology

Question: The presence (x = 1) or absence (x = 0) of bacteriuria has been determined in a group of subjects. What kind of variable is it? 
 Options:  <0> Ordinal. <1> Numeric <2> Categorical <3> Continuous quantitative <4> Discrete quantitative.
medicine

Question: Which of the following pathogens is the cause of cat scratch disease? 
 Options:  <0> Bartonella henselae. <1> Mycobacterium tuberculosis. <2> Mycobacterium avium complex. <3> Toxoplasma gondii. <4> Epstein Barr virus.

medicine