I would pick "B" because it because you cant find out anything else from the title
Idioms exist in every language. They are words or phrases that aren't meant to be taken literally. For example, if you say someone has "cold feet," it doesn't mean their toes are actually cold. Rather, it means they're nervous about something. Idioms can't be deduced merely by studying the words in the phrase.
A proxy war is <span>a war instigated by a major power that doesn't want itself to become involved.</span>