Outside sources that require citations and references include the following:
a. the writer's personal knowledge
b. common knowledge
c. information obtained from the internet
d. all of the above

the magna carta is a peace treaty between the king and the rebels. it was made because the the barons captured london in may 1215, so the king was forced to make a treaty with them.the document is written in latin.

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the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.