The correct answer is D) similarities and differences.
A historian is researching daily life in Ancient Egypt under a variety of ruling families over hundreds of years. This historian is using the "similarities and differences" way to study the past.
When comparing similarities and differences of every ancient ruling family, the historian can better comprehend the culture, tradition, and customs of ancient Egypt through the pass of time. Ruling Egyptian families could have used similar procedures and legislation that can be compared with other dynasties, and in doing so, the historian research can identify important differences that give relevancy to its investigation. This kind of comparison is a good way to learn more about the progress of civilization.
