A social studies teacher cautions students to be careful when using primary sources in their study of history. The teacher makes this statement because all primary sources
1
are fragile and easily damaged
2
require analysis and interpretation
3
present accurate and balanced views
4
serve as a means of propaganda and distortion

i'd assume india mainly because of how isolated japan was.   plus it is a whole china away.

answer: b.

explanation:

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

explanation: