B its creole hope this helps
Answer:
Its All three
Explanation:
I did it on Edge and tried just B and C and it said it was wrong but when I tried all three it was correct
The military facility that was built in Oak Ridge, TN in 1942 was created as the production site for the Manhattan Project. The Manhattan Project was an American, British, and Canadian project that developed the first atomic bomb.
D. developing materials to be used in the creation of the atomic bomb