next question: The man began to cogitate about cogitating, being able to do this meant he clearly he must what?\nOptions:\n- obsessive compulsive\n- mad\n- perambulate\n- have brain\n- sit quietly
reasoning:
User
Person who cogitate keeps on thinking very deeply. Only intelligent persons can cogitate about cogitating. Intelligent persons must have brain to think. The answer is have brain.
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