What Is the Most Reasonable Explanation for the Recent Trend

question 5

Multiple Choice

What is the most reasonable explanation for the recent trend in dolphin numbers in the eastern Pacific,as shown in part (b) ?

• A)Dolphins are not federally protected,and therefore their populations have not recovered.
• B)Dolphin populations have not recovered because humans have caught much of their prey,reducing the number of fish that are available to eat.
• C)Tuna fleets still catch a considerable number of dolphins as bycatch,so their numbers have not recovered.
• D)Although dolphins are no longer being caught as bycatch,their populations have not recovered because fleets are now fishing for these dolphins.
• E)Dolphin populations have not recovered because an Ebola -like pathogen has been decimating their populations.