Name any four sources of history​

History: Primary & Secondary Sources

Primary sources may 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

diaries, letters, interviews, oral histories, photographs,

Explanation:

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

answer; cultural trait;