In line with the social brain hypothesis, which of the following animals is likely to have the largest frontal cortex?

Question

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The social brain hypothesis suggests that animals living in complex social groups have larger frontal cortices, which are responsible for social and cognitive processing. Orangutans are highly social primates, living in groups with complex communication and social dynamics, making them likely to have a larger frontal cortex than the other animals listed.

In Line with the Social Brain Hypothesis, Which of the Following