The photo shows a porcupine with its quills raised. How does this behavior affect the survival of the porcupine population?
A. It helps a porcupine defend itself from a predator.
B. It tells other porcupines this porcupine wants to cooperate.
C. It increases a porcupine's chances of surviving cold winters.
D. It increases a porcupine's chances of finding a mate.

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