The "gadget" was the nickname of the first atomic bomb which was detonated<span> at the Trinity test site outside Alamagordo, New Mexico on July 16, 1945. This plutonium implosion-type bomb was similar to the "Fat Man" bomb dropped on the Japanese city of Nagasaki.</span>
I believe it's C because the emancipation proclamation it declaring that all slaves in slave states to be free.
Answer: 2+1=3
1+2=3
Explanation: hope this helps
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