Final answer:
The prevalence of hookup culture among young adults is the correct statement, reflecting sociological findings that sexuality is culturally universal with societal-specific norms.
Step-by-step explanation:
Based on sociological research on sexual activity among young adults, the correct statement is that hookup culture is prevalent among young adults. This is evidenced by studies indicating that while current youths hold some traditional sexual values such as the desire for monogamy, there is still a significant presence of hookup behaviors. Sociologists have found that sexual behavior is a cultural universal, and each society has unique interpretations and norms regarding sexuality. However, it's also important to note that not all individuals participating in hookup culture are necessarily satisfied with their experiences, and the impact of such culture on young adults' sexual behavior can be varied.