Microbiology Division and differentiation of B cells leading to production of plasma cells both require: A CD4 and CD8 B Interleukin (IL)-1 and IL-5 C IL-5 only D IL-4 and IL-6 💡 Explanation Division and differentiation of B cells leading to production of plasma cells both require: ✓ Correct Answer: D. IL-4 and IL-6