<u>Answer:</u>
The correct answer option is a. 1920s.
<u>Explanation:</u>
In 1920's, a social and intellectual movement broke out in Harlem, New York which is known as the Harlem/Manhattan Black Renaissance.
This explosion based on the new African-American cultural expressions over the urban regions of Mid-West and North-East of the United States of America, affected the African-American Great Migration.
Moreover, many black writers from the African and the Caribbean colonies who were residing in Paris were influenced by the Harlem Renaissance, though it was centered in Harlem neighborhood.
A Senator's term of office is six years and approximately one-third of the total membership of the Senate is elected every two years.
Surprised the overall tone of Roosevelt's Pearl Harbor speech