Which level of influence is concerned with norms, rules, and regulations?

The level of influence that addresses norms, rules, and regulations is best categorized within the context of population and community. This level encompasses the broader societal factors that shape behavior, including cultural expectations, community standards, legal frameworks, and institutional policies. These elements play a crucial role in influencing how individuals and groups behave, as they create an environment that can either support or hinder certain actions.

When considering the other levels of influence, intrapersonal focuses on the individual’s personal attributes, such as knowledge and beliefs, interpersonal concerns relationships and interactions between individuals, and individual pertains specifically to a single person's traits and characteristics. While all levels are important in understanding behavior, it is the population and community level that specifically deals with the external standards and upcoming influences that govern behavior across larger groups, making it the correct answer in this scenario.