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: What model of Family Therapy states that the change occurs when the pathological family game is replaced by another less harmful game? 
 Options:  <0> Therapy of the group of Milan. <1> Palo Alto MRI Therapy. <2> Therapy focused on solutions. <3> Structural therapy <4> Strategic therapy
[EX A]: psychology

[EX Q]: Question: Iron deficiency anemia is treated with oral or parenteral preparations: 
 Options:  <0> Only ferrous salts should be used orally. <1> Only ferric salts should be used orally. <2> Orally, the most appropriate form is the iron-dextran complex. <3> Orally, the treatment should last a maximum of fifteen days. <4> Only ferrous salts should be used parenterally.
[EX A]: pharmacology

[EX Q]: Question: A microelectrode is characterized by: 
 Options:  <0> Give answers in steady state. <1> Always need an inert electrolyte. <2> Always need a potentiostatic system. <3> Do not need a reference electrode. <4> Always need agitation.
[EX A]:
chemistry