Final answer:
All of the above factors including hormones, diet, and exercise affect hunger, sex, and the endocrine system. They collectively influence the release and action of hormones, appetite regulation, and sexual functions.
Step-by-step explanation:
What affects hunger, sex, and the endocrine system? The answer is 4) All of the above - hormones, diet, and exercise all play significant roles in these processes. The endocrine system is crucial as it controls the release of hormones that influence hunger, sexual behavior, and various other bodily functions. Hormones like ghrelin and leptin are directly involved in the sensation of hunger and satiety. Diet impacts the quality and quantity of nutrients available, which in turn can affect hormone levels. Exercise, on the other hand, influences appetite and hormones such as endorphins that can affect sexual desire.