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 of the following administration routes are commonly used for drugs of a peptide and protein nature ?: 
 Options:  <0> Oral. <1> Intravenous, intramuscular and subcutaneous. <2> Oral, intravenous and subcutaneous. <3> Oral, intranasal and inhalation. <4> Oral, intramuscular and intranasal.
pharmacology

Question: The hepatic synthesis of methionine from homocysteine ​​requires: 
 Options:  <0> N5, N10 methenyl-tetrahydrofolate. <1> N10-formyl-tetrahydrofolate. <2> N5-formimino-tetrahydrofolate. <3> N5-methyl-tetrahydrofolate. <4> N5, N10 methylene-tetrahydrofolate.
chemistry

Question: In a patient connected to invasive mechanical ventilation, when all movements are generated by the ventilator, supplying a certain volume with a constant flow during a preset time, without allowing the synchronization with spontaneous or additional respirations of the patient, we refer to: 
 Options:  <0> Assisted ventilation <1> Controlled mechanical ventilation. <2> Synchronized intermittent mandatory ventilation. <3> Spontaneous ventilation with continuous positive pressure. <4> Positive pressure at the end of expiration.

nursery