In an Example of Humanitarian-Motivated Immigration Policy,what Did Canada Do

In an example of humanitarian-motivated immigration policy,what did Canada do between 1947 and 1962?

A) admitted nearly 250 000 refugees and people displaced by World War II
B) offered admittance to thousands of Ukrainian farmers seeking refuge from famine
C) offered immigration visas to Romanians fleeing after an unsuccessful uprising
D) became the principal destination for individuals using the Underground Railroad