Final answer:
The nuclei of the hypothalamus are crucial for regulating hunger and satiety signals in the brain.
Step-by-step explanation:
The part of the brain that contains nuclei playing a crucial role in hunger and satiety signals is c) Nuclei of the hypothalamus. The hypothalamus has several areas that are essential for integrating signals related to hunger and the feeling of being full.
Foods rich in fatty acids promote satiety signals in the hypothalamus more efficiently than foods composed primarily of carbohydrates. Additionally, the hypothalamus plays a key role in the body's homeostasis, including the regulation of food intake.