Which of the following exerted selective pressure that may have acted in favor of having a large brain in humans?

Question

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All of these factors, tool use, social living, and language, could have played a role in favoring larger brains in humans. Tool use allowed for more complex problem-solving and innovation, social living required the ability to keep track of multiple relationships and social hierarchies, and language required the ability to process and communicate complex ideas. All of these factors likely contributed to the evolutionary pressure for larger brains.

Which of the Following Exerted Selective Pressure That May Have