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.

[EX Q]: Question: In relation to the physiology of the complement system, one of the following statements is false:
Options: <0> Most of its components are inactive. <1> Its mode of activation is similar to the coagulation cascade. <2> It is subject to strict control of regulatory mechanisms. <3> It is only activated by two different routes: the classical and the alternative. <4> During its activation, multimolecular complexes are formed.
[EX A]: pharmacology

[EX Q]: Question: Indicate the correct answer regarding the pancreas:
Options: <0> Your alpha cells secrete insulin. <1> Its F cells produce somatostatin, which accelerates the secretion of glucagon. <2> Your alpha cells secrete glucagon, which increases the concentration of blood glucose. <3> It is an exclusively endocrine gland. <4> Its delta cells secrete pancreatic polypeptide.
[EX A]: nursery

[EX Q]: Question: The analysis by potentiometric redisolution is characterized:
Options: <0> By using the square wave as an element of excitation. <1> Because the redisolution stage is carried out without agitation. <2> Because the reoxidation step is carried out by an oxidizing agent. <3> Because currents are measured in the redisolution stage. <4> Because the redisolution is carried out at constant potential.
[EX A]:
chemistry