A posible argument:
That depends on the situation of the person. If the person is in no mental state to make logical decisions about their life, they will be unable to volunteer.
Additionally, some people may not know about the welfare that the state offers; eg: immigrants from Latin America
TRUE, the textile industry was booming for them.
Alright so the first one is definetely D.
"internal problems unification among Islam in Northern Africa and Western Europe".