Question 11 (0.63 points) Saved Which statement about lymphocytes is FALSE? Question 11 options: a) T lymphocytes produce antibodies. b) Each lymphocyte can only react to one antigen. c) Macrophages present antigens to lymphocytes. d) Upon activation, lymphocytes undergo clonal selection . Question 12 (0.63 points) Saved Which term describes when the immune system does not distinguish between self and non-self? Question 12 options: a) active immunity b) immunodeficient c) autoimmune d) allergy