Questions 21 and 22 are based on the following news. At the end of the news item you will be given 10 seconds to answer the questions. Now, listen to the news. As for the Marine Mammal Program, a federal judge was concerned that the dolphin sand sea lions______.
A．couldn’t adapt to Alaska’s sea environment B．couldn’t cope with the particular mission C．couldn’t adapt to the base’s cold sea water D．could harm the base’s sea environment