TOEFL Listening: ETS-TOEFL听力机经 - GUZ393QZ2417ITCIP$

What points about tuna does the professor emphasize when she discusses artificial fish-aggregating devices, or FADs? A. That tuna continue to aggregate as adults B. That tuna rely on FADs for most of their food C. That FADs are usually placed in areas where juvenile tuna do not live D. That juvenile tuna are seldom found in coastal waters