Pathology General f3f27819 Interleukin 2 is produced by A T helper cells 2 B Natural killer cells C T helper cells 1 D Basophils High-Yield Explanation A) T helper -1 (TH1) secretes → IL-2 and interferon - γ B) T helper - 2 (TH2) secretes → IL-4, IL-5, IL-6, IL-13