Answer:
Pleurisy occur when the Pleura- a layer consisting of layer of tissues that lines the chest cavity and a layer of tissues that surround the lungs- becomes inflammed thereby causing chest pain so therefore the best way to tackle the situation is to introduce an anti inflammatory drug which contains about half of analgesics which will help to remedy pain by reducing inflammation.
Explanation:
The answer is Push Factor because it was an issue making people want to move from their home country.