Answer :
Old books and papers. Historians prefer to make a research through written words. Buildings, ruins, old tools are rather a task for an archeologist.
Historians use primary and secondary sources to study history.
- Primary sources include something created or written by a person who had witnessed a historical event. Diaries, speeches, diaries, and photographs are some examples of primary sources.
- Artifacts are also considered primary sources. It includes works of art, tools, and objects created or shaped by humans. Weapons, coins, items of personal adornment
- Secondary sources include paintings, books, etc which were created based on the primary sources by the people who did not witness the event. These sources appear after an event. Dissertations, biographies, political commentary, encyclopedias and dictonaries, textbooks, and journal articles.
- Archeologists deal with tools, pottery shards, ruins, and buildings. historians use the information revealed or published by them in textual form.
So we can say that A. Old books and papers is the correct answer.
Learn more about archaeology and anthropology here:
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