Detailed Instructions: 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: When in a laboratory report we observed that the patient presents an increase in the concentration of transferrin with a decrease in its saturation, we can think of: 
 Options:  <0> Pernicious anemia. <1> Sickle-cell anaemia. <2> Thalassemia major. <3> Hereditary spherocytosis. <4> Anemia due to iron deficiency.
Solution:
pharmacology