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: A spontaneous process is characterized because: 
 Options:  <0> In isolated systems the entropy decreases (ΔS <0). <1> At constant pressure and temperature, the Gibbs energy decreases (ΔG <0). <2> At constant pressure and temperature, the Helmholtz energy decreases (ΔA <0). <3> At constant volume and temperature, the Gibbs energy increases (ΔG> 0). <4> It is reversible.
[EX A]: pharmacology

[EX Q]: Question: An essential characteristic of plasmids is: 
 Options:  <0> Be able to integrate into the genome of the host cell. <1> Direct the process of bacterial conjugation. <2> Carry genes for antibiotic resistance. <3> Replicate autonomously. <4> Being circular DNA molecules.
[EX A]: biology

[EX Q]: Question: The hydrogen atoms with partial positive charge of one water molecule can interact with the oxygen atoms, with negative partial charge of another water molecule. What name does this interaction receive? : 
 Options:  <0> Hydrophobic <1> Polar. <2> Hydrogen bridge. <3> Van der Wall. <4> Zwitterion.
[EX A]:
chemistry