Verified Answer :

The answer is 12 million.
Many of these immigrants came to America in the hopes of making a better
life for themselves and their families.
Eventually their descendants have integrated themselves in American
society.  Many have become successful and
so have their descendants.  Even today,
despite the economic problems in the U.S., people still want to travel there to
achieve the same success as early immigrants did so many years ago.

The answer is B. 12 million