Which of the following is NOT a component of counterterrorism?

The correct choice is based on the definition and typical components of counterterrorism efforts. Counterterrorism typically includes a range of tactics aimed at preventing and responding to acts of terrorism. Military intervention, preventative law enforcement actions, and intelligence gathering are all direct methods employed by governments and agencies specifically to combat terrorism.

Public relations campaigns by advocacy groups, while potentially contributing to the broader discourse around terrorism or promoting understanding and resolution of underlying issues, do not fit into the operational frameworks or strategies typically defined as counterterrorism. These campaigns focus more on communication and public perception rather than direct actions to combat terrorist threats. Therefore, this makes it the option that does not belong as a primary component of counterterrorism.