Complete the passage: pick from possible candidates.

Shaker Aamer, the last British resident held in Guantanamo Bay, has been brutally beaten on film at least 315 times by guards, it has emerged. As David Cameron prepared to fly to Washington for talks with Barack Obama seeking his release, it was revealed the father-of-four is routinely assaulted by guards for peaceful protests. Campaigners said the 46-year-old terror suspect, imprisoned at the notorious military camp without charge or trial for almost 13 years, was subjected to a violent procedure known as a ‘forcible cell extraction’ by teams of riot officers. Scroll down for video Campaigners claim that Shaker Aamer, pictured, is assaulted on a regular basis by U.S. military guards

I do not understand the

OPTIONS:
- Aamer government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- Barack Obama government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- British government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- David Cameron government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- Guantanamo Bay government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- Shaker Aamer government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- U.S. government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- UK government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’
- Washington government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’


British government’s failure in Shaker’s case: how can it be that our closest ally can continue to abuse a British resident and we are powerless to persuade them to stop?’