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: The formation of the complex called Aminophylline improves the solubility of one of the following drugs: 
 Options:  <0> Theophylline <1> Digoxin <2> Ampicillin <3> Thioridazine. <4> Ciclosporin
answer:
pharmacology


question:
Question: The arginosuccinasa: 
 Options:  <0> In an enzyme of the citric acid cycle. <1> Converts arginine to lysine. <2> It is activated by the allosteric effector N-acetylglutamate. <3> It produces fumarate. <4> It is a glycogenic amino acid.
answer:
chemistry


question:
Question: Point out the correct answer regarding the hormonal control of reproduction: 
 Options:  <0> The gonadotropin-releasing hormone (GnRH) of the pituitary gland controls the secretion of two gonadotropins from the anterior lobe of the hypothalamus. <1> The gonadotropins are the follicle-stimulating hormone (FSH) and the luteinizing hormone (LH). <2> FSH acts mainly on endocrine cells, stimulating the synthesis of sex hormones. <3> LH is necessary, together with steroid sex hormones, to initiate and maintain gametogenesis. <4> All the above are correct.
answer:

nursery