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: Which gene is most frequently associated with acquired mutations in breast cancer? 
 Options:  <0> p53. <1> PTEN. <2> BRCA-2. <3> BRCA-1. <4> Her2 / neu.
medicine

Question: Graphite: 
 Options:  <0> It gives intercalation compounds with fluorine. <1> Reacts with sodium to give a covalent compound with C ̶ Na bond. <2> Reacts with sodium to give intercalation compounds that have the same distance between layers that pure graphite had. <3> Reacts with sodium to give intercalation compounds that are better electrical conductors than pure graphite. <4> It gives covalent compounds with bromine with C ̶ Br bond.
chemistry

Question: Question linked to image nº17 You receive a biopsy of the duodenum of a 38-year-old woman with no other clinical information. What is the most likely diagnosis? 
 Options:  <0> Intestinal lymphoma: infiltration of the lamina propria and the superficial epithelium by a monotonous lymphoid cell population. <1> Gluten-sensitive enteropathy (celiac disease): intestinal villi atrophy, increased inflammatory infiltrate and intraepithelial lymphocytosis. <2> Lymphangiectasias: dilatation of lymphatic vessels located in the lamina propria of the mucosa. <3> Whipple's disease: accumulations of macrophages of wide cytoplasm and microvacuolate in the lamina propria of the mucosa. <4> Giardiasis: presence of Giardia lamblia trophozoites on the intestinal surface.

medicine