Answer:
Option C.
Step-by-step explanation:
Historic events, is the right answer.
Historic events refer to those events that transpired in the past and are investigated and published by historians. Such events are recorded according to data such as documents, artifacts, photographs, recordings etc. In this sense, to decide how such events transpired it is crucial not only to learn the actions and processes involved in these (what), but the personalities or substances involved (who), the site or place of the events (where), the roots or circumstances (why) and the time these events (when).