Primary source is an artifact, a document, diary, manuscript, autobiography, a recording, or other source of information that was created at the time under study.
Answer: Following the assassination of Franz Ferdinand, Austria Hungary was hella mad about it, so they went to Germany, and was like hey, help us get revenge on Serbia. So the two of them teamed up and declared war on Serbia on July 28th. Shortly after (a couple of days) Germany declares war on Russia, and then after Serbia's ally invaded France, that pushed Great Britain to declare war on Germany.
(hope this helps)
The right answer is more than likely C because because the British had an inexperienced army. Although the British did inflict significant causalities to the army it was a clear victory for the Americans.
