How do different governments react to and try to prevent terrorism?

Different governments react to and try to prevent terrorism in a number of different ways depending on whether the terrorism is domestically grown or foreign grown. A number of policies supported by governments seek to institute security measures to seek out and destroy terrorist leaders and organizations. This is usually done by a series of policing or military measures. In addition to security measures governments also often use economic or political measures to try isolate terrorist groups and prevent individuals from joining them. 

Ibelieve your answer would be answer choice a