The answers are B. C. and E.
The answer to this is facts
"<span>A. It amounted to an informal declaration of Cold War" would be the best option, but it was not even remotely formal--in that it simply said that the US would come to the aid of any countries in danger of becoming communist. </span>
People have moved from their home countries for centuries, for all sorts of reasons. Some are drawn to new places by ‘pull ‘ factors, others find it difficult to remain where they are and migrate because of ‘push’ factors. These have contributed to the recent movement of people here but are also the reason why people from here have emigrated to other countries. Over 80 million people in the world have Irish blood; 36.5 million US residents claimed Irish ancestry in 2007. Historically some were transported or sold into slavery or left because of poverty, hunger, persecution, discrimination, civil war, unemployment and, more recently, simply for education and better jobs. Migrant numbers have risen rapidly in the last decade. In 2013 there were thought to be over 230 million international migrants.