The correct option is A Guantanamo Bay
Guantanamo Bay Prison is a detention centre established in 2002 by the US authorities in the wake of the 9/11 attacks. Anyone who is suspected of being a threat to the security of the country is detained here. Since its establishment, over 779 men have been detained there. But only a meagre 7 of them have been convicted. Most of the detainees are not even given a fair trial and are held for years on end.