Stings decoys undercover fencing operations and stakeouts are types of

their just depressed and think that if they give pain to some one else the pain goes away from them. which it doesn't.

answer:

d

explanation:

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