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: What are the cells of the gastric glands that secrete intrinsic factor called ?:
Options: <0> Main. <1> Parietals <2> Mucous <3> Endocrine <4> Cells of the diffuse neuroendocrine system (SNED).
Output:
pharmacology