Groups such as the Visigoths, Vandals, Angles, Saxons, Franks, Ostrogoths were tribes of people that helped bring about the collapse of rome.
A should be correct sorry if wrong
Answer: From the White House, US President John F Kennedy cancelled at the last minute the US air strikes that would have neutralised Castro's aviation. He did so because he felt the United States could not appear to be behind the invasion
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