Q: The cells that produce antibodies are key in what system?\nOptions:\n- (A) health\n- (B) T cells\n- (C) vision\n- (D) humans\n- (E) macrophages\n- (F) B cells\n- (G) disease\n- (H) immune
Let's think step by step below.

User
Lymphocytes are the key cells involved in the immune response. B lymphocytes produce antibodies . The key cells involved in the immune response produce antibodies.
Thus, the answer is (H).
Assistant