Which of these was NOT an innovation or product that emerged directly from the Manhattan Project's military research and development?

The development of nuclear weapons during World War II represents one of history's most significant and consequential military product development initiatives. The Manhattan Project combined unprecedented scientific research, industrial manufacturing, and military secrecy to produce weapons that would forever change warfare and international relations. Test your knowledge about this pivotal military product development program that shaped modern history.

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The Little Boy uranium bomb dropped on Hiroshima
The Fat Man implosion-type plutonium bomb dropped on Nagasaki
The hydrogen bomb (H-bomb) deployed during World War II
The plutonium production reactors at Hanford, Washington