Which of the following explains why a small conflict in the Balkans spread to all of Europe? (5 points) O a
Many of the European powers had entered into alliances requiring them to defend each other.
Ob
Most of the European powers lacked military defenses to stop an attack.
Serbia refused all of Austria-Hungary's demands, prompting other nations to declare war.
Ос
Od
Slavs in Russia refused to support their fellow Slavs in the Balkan region.

Most of the European powers lacked military defenses to stop an attack.

Serbia refused all of Austria-Hungary's demands, prompting other nations to declare war.

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.