The language strategy is called Semantics
• Semantics has to do with how we are able to interpret words and signs and also the meaning that we give to such signs.
• The way that we are able to understand other people has a lot to do with "semantics".
• Since the The Free Folk look down on Night's Watch and use terms such as 'crow' to separate themselves, then this is a language strategy known as semantics.
• Therefore, the correct option is semantics.
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