So b and D are wrong the answer is A
Letters would be an example of a primary source
There are several ways in which nationalism, imperialism, and militarism helped set the stage for World War I, but it general it made each European country feel that it was superior to the others.
Answer:
the confedrate flag still flies in many places. it is legal. however, some places, like nascar stadiums have recently banned it.
Explanation: