The __________ was a secret weapon developed in part at the Hanford site in eastern Washington.
A. B-29 bomber
B. atomic bomb
C. V-2 missile
D. jet fighter
You can rule out C, which is the V-2 Rocket by the way, and D. So that leaves A and B, and the B-29 isn't necessarily a "weapon". So I would say B: atomic bomb
