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.
Q: Question: The toxicological interest of the hair is due to:
Options: <0> His analysis allows to know the toxic exposure in the past. <1> The change in their coloration can facilitate the diagnosis of poisoning. <2> It constitutes an effective protective barrier against the action of corrosives. <3> Its growth is interrupted by the chronic consumption of amphetamines. <4> Hair analysis is of no interest in Toxicology.
A:
pharmacology