Option C is correct, as 'writing' is only really a description of the physical act of creating a document. The other terms outline the nature of the research that has to happen in order to produce the intellectual information that forms a historical explanation, so these are all actually phases in the creation of a historical explanation.
The phases involved in creating a historical explanation include inquiry, research, and conclusion. The option that is not a distinct phase is C: Writing , as it is more of a tool used throughout the process rather than a separate phase. Writing integrates all findings into coherent conclusions but is not categorized as a phase itself.
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