What are signs of potential gang activity officers should be aware of?

B is the correct answer due to the specific indicators that can clearly signify gang activity within a community. Graffiti is often used as a means of territory marking and communication among gang members, with various symbols and tags that are distinctive to specific gangs. Additionally, known gang colors are a visible representation that can identify gang affiliation and presence in an area. Certain hand signs also serve as a way for gang members to communicate with each other, asserting their identity and often signaling their alliances or rivalries.

The presence of these elements is critical for law enforcement officers to recognize, as they can not only indicate the existence of gangs but may also highlight potential conflicts or criminal activities associated with gang culture. Understanding these signs is vital for effective community policing and crime prevention efforts.

While community service events, local charities, increased participation, public gatherings, and changes in business ownership may reflect changes in community dynamics, they are not direct indicators of gang activity. These aspects could be positive developments in a community rather than contributing factors to gang presence or influence.