A Major Reason for Why Recent Immigrant Families in Canada

A major reason for why recent immigrant families in Canada have more difficulties making ends meet than older immigrants and Canada-born persons is because

A) The majority of recent immigrants do not have the credentials required to participate in the current labour force.
B) Most of them are temporary visa workers and are thus susceptible to exploitation and the loss of their jobs.
C) Many of them refuse to find work once they arrive in Canada.
D) Language barriers.
E) Most of them suffered from poverty in their country of origin.