TASK DEFINITION: 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.
PROBLEM: Question: The set of means and systems that facilitate the contact of the infectious agent with the recipient subject corresponds to: 
 Options:  <0> Source of infection. <1> Habitat. <2> Transmission mechanism. <3> Biotope <4> Reservoir.

SOLUTION: nursery

PROBLEM: Question: Pharmaceutical planning, in Spain, is the responsibility of: 
 Options:  <0> The municipal authorities. <1> The Interterritorial Council of the National Health System. <2> The county entities. <3> The state administration. <4> The autonomous communities.

SOLUTION: pharmacology

PROBLEM: Question: The ARP2 / 3 complex: 
 Options:  <0> It is an intermediate filament nucleator agent. <1> It is located in the centrosome. <2> It is responsible for the branching of the actin filaments. <3> It is part of the nuclear sheet. <4> Involved in the formation of transport vesicles.

SOLUTION:
biology