The main idea of this passage is that ______.
A:most of todays common English military terms dated from the sixteenth century or later
B:a study of the English vocabulary shows the important part which war has played in the history of England
C:many French words borrowed into English during the Middle Ages have since disappeared from the language
D:many military terms used in
E:nglish were originally borrowed
F:rom French, some as early as the Middle Age