What was the manhattan project?
a. the last japanese military offensive
b. a secret u. s. project to develop nuclear bombs
c. a soviet union military plan for combat against japan
d. an agreement between the united states and the soviet union regarding eastern europe

B. There's even a show about it on Netflix.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

The answer is option b and c.