The source in which one can find information before it has been published in a peer-reviewed source is Conference Presentation.
What is peer-reviewed source?
A peer-reviewed source or scholarly source is a source of information on which the information is provided by the experts (peers) regarding their fields.
An information can be obtained more credibly from a conference presentation before it has been published in a peer-reviewed source.
Therefore the correct option is B.
Learn more about a peer-reviewed source here:
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