Final answer:
The correct answer is option a) Cultural norms and values.
Step-by-step explanation:
The greatest influence on sexual behavior has historically been rooted in cultural norms and values, including the prominent role of religion in society. However, with changing times, especially in the United States, peers and media have increasingly become significant influencers of sexual behavior among teens. Studies have indicated that sexual attitudes and practices vary widely across cultures and societies, reflecting the diversity in norms regarding monogamy, premarital sex, and the value placed on chastity. Sociologists focus on these societal attitudes and sexual practices rather than the physiological aspects of sexuality.
From a sociological perspective, sexuality encompasses the capacity for sexual feelings and the array of attitudes related to sexual behaviors. Factors such as gender, class, and family are critical in a person's socialization, but sexuality is primarily understood in relation to cultural and societal contexts.
Notably, the incest taboo acts as a universally shared norm, although who is considered a relative and thus taboo varies worldwide.