单项选择题

A．It is really hard to explain why dogs and cats are co……

Questions 14-16 are based on the following speech. You now have 15 seconds to read Questions 14- 16.

Which of the following is INCORRECT

A．It is really hard to explain why dogs and cats are colorblind.
B．Some colorblind animals have dull-colored coats.
C．Some colorblind animals hunt for food in the dark of night.
D．Some colorblind animals graze in the dim twilight hours.

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