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.
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Question: Question: The nuclear lamina is formed by: 
 Options:  <0> Actina. <1> Tubulina. <2> Intermediate filaments <3> Fibronectin <4> Laminin

Answer: biology


Question: Question: What is the purpose of the phthalyl group in phthalisulfatiazole ?: 
 Options:  <0> Improve intestinal absorption. <1> Prevent intestinal absorption. <2> Improve the passage through the blood-brain barrier. <3> Prevent passage through the blood-brain barrier. <4> Increase the affinity towards the therapeutic target of the drug.

Answer: pharmacology


Question: Question: One patient is diagnosed with a 4 cm lung cancer without pleural contact in the right upper lobe. The extension study reveals the presence of metastasis in right parahilar nodes, without evidence of distant metastasis. The staging of the tumor will be: 
 Options:  <0> Stage I. <1> Stage IIA. <2> Stage IIB. <3> Stage IIIA. <4> Stage IIIB.

Answer:
medicine