Which of the following is an example of a primary source?

a. a diary entry from a german homemaker in 1933
b. an academic article explaining the importance of the cold war
c. an interview with a historian about the reagan presidency
d. a novel set in the american colonies

answer; /// i believe that the correct answer is (b)///they gained vast amounts of

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.