Final answer:
Intrapsychic scripts exist at the individual level and are about a person's fantasies and desires related to sex, representing their internal sexual domain. These inner scripts influence personal sexual behavior, distinct from the socio-cultural norms and attitudes that are external.
Step-by-step explanation:
In the context of sexual scripts, intrapsychic scripts are an element of our sexual behavior and attitudes referring specifically to an individual's inner domain. This includes individual fantasies and desires related to sex, which shapes their internal desires and potential sexual behavior. While not as outwardly observable as societal or cultural norms, these intrapsychic aspects hugely influence one's private sexual life.
Socio-cultural influences such as the family, education system, peers, media, and religion historically socialize individuals to sexual attitudes. Though what is considered "normal" may vary globally, certain societal values, like monogamy, and norms, such as the incest taboo, are observed widely with variations based on cultural interpretation. Additionally, in industrialized nations, views on premarital sex and the valuation of chastity differ, reflecting diverse sexual attitudes across cultures.
Therefore, when identifying the levels of sexual scripts, it is apt to conclude that intrapsychic scripts encompass option 3), individual fantasies and desires related to sex, rather than broader societal or cultural norms.