Answer: Conjectures.
Step-by-step explanation: A conjecture is an opinion or conclusion formed on the basis of incomplete information. All proofs start as a conjecture until it is proven as a truth (a proof).
All proofs start as Conjectures. Then the correct option is B.
A hypothesis in mathematics is a conclusion or a proposition made tentatively without supporting evidence.
A conjecture is an opinion or conclusion formed on the basis of incomplete information. All proofs start as a conjecture until it is proven as a truth (a proof).
Hence, the correct answer is option B.
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