What signifies the period known as history?

AThere are written records.
BIt is a much longer period than prehistory.
CIt started two million years ago.
DIt started two centuries ago.

Verified Answer :

Awould be the correct answer.

Answer: a. There are written records.

Explanation:

History is the time period that includes what was happening and the facts of humanity since there is evidence of writing in civilizations. Prehistory are all the events that occurred from the appearance of the first hominid until the invention of writing. Therefore the fact that there are written records means that the events happened during historical times.