Final answer:
Hormones, especially testosterone, have a complex relationship with sexual desire in men, influencing both sexual motivation and behavior. The correct option is (4).
Step-by-step explanation:
The interaction between hormones and sexual desire in men is complex. Hormones, particularly testosterone, play a significant role in the regulation of sexual desire.
Testosterone, as the main sex hormone in males, influences not only sexual development and reproduction but also is pivotal in sexual motivation and behavior.
The role of hormones in sexual desire has been studied in both animals and humans, indicating a connection between circulating testosterone levels and sexual motivation across genders.
Moreover, conditions such as hypogonadism or other disorders affecting the hypothalamus can lead to reduced sexual function, further demonstrating the influence of hormones on sexual desire.
Therefore, out of the given options, statement 4, 'Hormones have a complex interaction with sexual desire in men,' most accurately describes the relationship between hormones and sexual desire.