Why was the Manhattan Project kept top secret?

The United States did not want Great Britain or France to know that it had nuclear technology.

No one was sure if the atom bomb would actually ever work and they didn't want negative feedback.

The Allies were afraid that the technology would be stolen by spies belonging to Germany or Japan.

The United States was developing the technology illegally and with stolen technology and materials.

Question

Why was the Manhattan Project kept top secret?

The United States did not want Great Britain or France to know that it had nuclear technology.

No one was sure if the atom bomb would actually ever work and they didn't want negative feedback.

The Allies were afraid that the technology would be stolen by spies belonging to Germany or Japan.

The United States was developing the technology illegally and with stolen technology and materials.

anonymous · Answer

The Manhattan Project was a research and development project that produced the first atomic bombs during World War II. It was led by the United States with the support of the United Kingdom and Canada.

anonymous · Answer

That should clear up a couple of the answers.

anonymous · Answer

B and D are ruled out for sure. So it is either A or C right?

anonymous · Answer

The United Kingdom supported the Manhattan project.

anonymous · Answer

(which is also known as Great Britain)

anonymous · Answer

Okay so it is A?

anonymous · Answer

No, C. A says that America did not want Great Britain (United Kingdom) to know that they were making a super-weapon. However, in reality, the United Kingdom SUPPORTED the Manhattan Project.

anonymous · Answer

Thanks!

wwhitlock · Answer

Sorry internet hiccuped. I think you probably got the right answer.