You will be given a definition of a task first, then some input of the task.
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: The maturation process for the dendritic cell involves important changes in its physiology, such as: 
 Options:  <0> Decreased expression of the CCR7 marker. <1> Reduction of endocytic capacity. <2> Decreased expression of histocompatibility molecules. <3> Synthesis of IL-13. <4> Reduction of CD40 expression.
Output:
pharmacology