31. Which of the following statements about ICCAT and bluefin tuna is NOT true according to the passage? (A) ICCAT assigns quotas for bluefin tuna in the North Atlantic and Mediterranean and monitors trade. (B) Bluefin tuna migrate quickly and can cross the Atlantic Ocean in about two months. (C) ICCAT includes both regional fishing nations and several major global fishing powers. (D) ICCAT was originally established to regulate fishing practices exclusively within Asian waters.