Multiple choice general knowledge

Born out of a small research program in 1939, the Manhattan Project eventually employed more than 130,000 people and cost nearly _____________

  1. US $ 4 billion
  2. US $ 3 billion
  3. US $ 2 billion
  4. US $ 1 billion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Manhattan Project cost approximately US \$2 billion (about \$26 billion in 2024 dollars). This massive investment employed over 130,000 people and became the most expensive research project of World War II.