Which of the following has the most complex nervous system?\nOptions:\n- (A) animals\n- (B) nerves\n- (C) fur seals\n- (D) humans\n- (E) elephants\n- (F) Jellyfish\n- (G) bears\n- (H) kalenchoes Let's solve this problem gradually.

User
Most invertebrates have a more complex nervous system. Jellyfish and insects are invertebrates. Jellyfish have a more complex nervous system. So the final answer is (F).
Assistant