Carrie suffered brain damage when she was injured in a car accident. Since then, she is unable to take pleasure in the things she used to. She has also lost interest in sexual intimacy with her husband and does not enjoy the taste of her favorite foods. In this scenario, damage to which of the following areas of the brain is most likely causing her inability to experience pleasure?

1. medulla
2. hippocampus
3. hypothalamus
4. pituitary gland
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