It Is One of the Great Ironies of History That

It is one of the great ironies of history that

A) by the time socialism had taken hold n a few European countries, more people had emigrated from those countries than from the others.
B) Italians coming to America to escape religious persecution had difficulties in trying to find places to worship.
C) as more Europeans left the continent for the United States, working conditions actually improved in Europe.
D) by coming to America from various countries and cultures, European immigrants intermarried freely and so began to lose their cultural distinctiveness.
E) a large percentage of those leaving Europe during the latter part of the 19^th century were Jews fleeing persecution from Russians whose descendants would one day be among the first to discover Germany extermination camps where the Jews were killed en masse.