I think it is number 3 set up a medical system.
Answer:
History sources include diaries, letters, interviews, oral histories, photographs, newspaper articles, government documents, poems, novels, plays, and music. The collection and analysis of primary sources is central to historical research.
Explanation:
brainliest.
The widespread sentiment that influenced the rise of totalitarianism was a fear of instability and the rise of nationalism in countries like Germany and Italy. Authoritarian leaders crystallized the notion that a singular leader, a strong military, limited dissent and nationalism were the ingredients necessary for a strong state. This became a normative framework in Germany and Italy.
The correct answer is D, slave trading.
