Multiple choice general knowledge history

A prominent conjecture created by Ramanujan had kept a whole galaxy of of Mathematicians at bay before being solved by Pierre Deligne in 1974. It is

  1. Hardy`s conjecture

  2. ramanujan's conjecture

  3. rubiks cube conjecture

  4. the tau conjecture

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D Correct answer
Explanation

The Ramanujan conjecture (also known as the tau conjecture) was a significant hypothesis about tau functions that kept mathematicians puzzled for decades. It was finally solved by Pierre Deligne in 1974, for which Deligne was awarded the Fields Medal.