1. Which of the following examples would be considered a primary source regarding WW I?
A) A textbook chapter on trench warfare
B) newspaper article published last year on a soldier in WW I
C) diary entry from a soldier during WW I
D) lecture by Mr. Mueller on the causes of WW I
Step-by-step explanation: It is the most trustworthy source because it can't be rewritten or changed up. It came directly from history. Hope this helps :)