Which option is an example of suspicious behavior?

Loitering in a dark area is considered an example of suspicious behavior because it can indicate a potential intention to engage in unlawful activity. Such behavior is often associated with individuals who may be waiting for an opportunity to commit a crime or who are trying to avoid detection by others. This is particularly true in settings where people typically do not congregate, creating an unsettling atmosphere for passersby or residents.

In contrast, helping an elderly person cross the street, walking a dog in daylight, and participating in a neighborhood watch are all positive, socially acceptable behaviors that demonstrate community engagement and concern for safety, making them less likely to raise suspicion. These actions contribute to a sense of normalcy and security within a community, whereas loitering in a secluded area often does not align with typical social interactions or community safety norms.