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 different subpopulations of effector T lymphocytes secrete different cytokines. Which of the following statements is false?:
Options: <0> TH1 lymphocytes secrete IL-3. <1> TH17 lymphocytes secrete IL-6. <2> TH2 lymphocytes secrete IFN-gamma. <3> Cytotoxic T lymphocytes secrete TNFalpha. <4> The regulatory T lymphocytes secrete IL-10.
pharmacology