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: Which gene is most frequently associated with acquired mutations in breast cancer? 
 Options:  <0> p53. <1> PTEN. <2> BRCA-2. <3> BRCA-1. <4> Her2 / neu.
medicine

Question: The anatomical dead space: 
 Options:  <0> It is always greater than the physiological one. <1> Secret surfactants. <2> Includes medium-sized bronchioles. <3> It allows gaseous exchange. <4> Includes the volume of inspiratory reserve.
biology

Question: Defibrillation is characterized by: 
 Options:  <0> It requires the patient's previous sedation. <1> It is usually used when the patient is in asystole. <2> It can be applied in ventricular tachycardias with a pulse. <3> The discharge is not synchronized with the patient's heart rate. <4> A minimum intensity discharge should be used.

nursery