If law enforcement has reasonable suspicion that a person is engaged in criminal activity, an officer may

a. not take any action without a warrant

b. stop and question a person

c. arrest the person

d. search the person

not take anybaction without a warrantis the right answer

counter-terrorism incorporates the practice, military tactics, techniques, and strategy that government, military, law enforcement, business, and intelligence agencies use to combat or prevent terrorism.

basically prevent, pursue, protect, and prepare, google it if you need more info