When was "the great migration"?

a. 1800-1850
b. 1910-1940
c. 1890-1909
d. 1964-2000

these are my options (above). i cannot put a different answer.

i hate to say this but its actually between 1916 and 1970 but the close answer is B:1910-1940

Explanation:

sir thomas more, venerated in the catholic church as saint thomas more, was an english lawyer, social philosopher, author, statesman, and noted renaissance humanist. he was also a councillor to henry viii, and lord high chancellor of england from october 1529 to 16 may 1532.

answer; i believe the correct answer is (the willamete valley);