Which of the following is a primary source? a. a texas history textbook b. a documentary film about the trail of tears c. a biography of alexander graham bell published in 1995 d. a love letter written to john adams from abigail adams

The answer is going to be letter D. or the last option.

Hope this helps!

I think it is a documentary film about the Trail of Tears. In the study of history as an academic discipline, a Primary Source is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time under study. I looked this up for you. Hope this helps;)

that is probably something for you to answer