Answer the following question: Answer the following question given this paragraph: The human brain is an amazing organ. It is the most complex organ in the human body. By adulthood, the brain weighs about 3 pounds and consists of billions of neurons. All those cells need a lot of energy. In fact, the adult brain uses almost a quarter of the total energy used by the body!. Q: What is the most complex organ in the human body? Choices: - heart - liver - muscular - brain A:
Answer:
brain