instruction:
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:
Question: A study is carried out to investigate the association between factor X and disease Z. To do this, 120 subjects with the disease and 420 controls (without the disease) are matched by age and sex. In both groups it is found that 20 subjects were exposed to factor X. What is the odds ratio (OR) between factor X and disease Z? 
 Options:  <0> OR = 1 (no association). <1> OR = 2. <2> OR = 4 <3> OR = 6 <4> OR = 8
answer:
medicine


question:
Question: A 26-year-old woman with no previous psychiatric history, she went to the ER brought by her parents, who explained that she had been overactive, nervous, insomniac for a few days. They explain that he obsessively reviews the house's electrical installation in search of video cameras and microphones. In the interview, she tells us that she is being watched by the Police because she is a galactic correspondent with special powers. Which of the following options should NOT be considered as a differential diagnosis? 
 Options:  <0> Obsessive compulsive disorder <1> Schizophrenia. <2> Manic episode. <3> Psychosis due to the consumption of toxic substances. <4> Brain tumor.
answer:
medicine


question:
Question: Acetyl-CoA carboxylase: 
 Options:  <0> It is a mitochondrial enzyme. <1> Its product is Succinyl-CoA. <2> It requires biotin as a cofactor. <3> Free ATP <4> Eat NADH.
answer:

biology