TASK DEFINITION: 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.
PROBLEM: Question: The eggs are operculated: 
 Options:  <0> Hymenolepis nana. <1> Trichinella spiralis. <2> Enterobius vermicularis. <3> Fasciola hepatica. <4> Ascaris lumbricoides.

SOLUTION: biology

PROBLEM: Question: COMPLETE: in the Krebs cycle 4 oxidation reactions occur, in 3 of them the final acceptor electron is ___ and in the other is ___: 
 Options:  <0> FAD / FMN. <1> NAD + / FMN. <2> NADP + / FAD. <3> NAD + / FAD. <4> FAD / NAD +.

SOLUTION: chemistry

PROBLEM: Question: Regarding the Gastrointestinal Stromal Tumors (GIST), it is true that: 
 Options:  <0> These are tumors of epithelial origin, located mainly at the level of the mucosa of the digestive tract. <1> The mutation of the c-kit gene, which codes for a tyrosine kinase receptor, is characteristic of these tumors. <2> The treatment of localized tumors smaller than 2 cm is fundamentally medical, with the use of Imatinib. <3> They are tumors that only exceptionally bleed. <4> The most frequent localization of these tumors is the small intestine.

SOLUTION:
medicine