Since World War II, most terrorist attacks on Americans have been carried out by groups from B. the middle east.
Explanation:
The USA has been the prime target of many terrorist groups from the radical middle east which has been ridden by the Islamic militants that were funded during the cold war by Russia and USA.
USA had a very deep and ingrained involvement in the affairs of the countries of the region.
This involvement made them a prime target of the groups which became powerful as a result of political unrest in the middle east fueled by the cold war in which the USA was a prime player.
