The Migration of Europeans and Africans to the Western Hemisphere

The migration of Europeans and Africans to the Western Hemisphere between 1500 and the present:

A) is entirely unique, unlike any other migration episodes in history.
B) resulted in an estimated 75 million Europeans immigrating to present-day Western Hemisphere countries.
C) included an estimated 1 million Africans taken as slaves to the Western Hemisphere and the death of many millions more en route.
D) All of the above.
E) None of the above.