You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: LANGUAGES 
Clue: Of the 6 official languages of the United Nations, the one spoken by the fewest people worldwide
french

Category: FLAGS 
Clue: On February 15, 1965 this country raised its new national flag for the first time on Parliament Hill
canada

Category: HISTORIC DOCUMENTS 
Clue: Clause 39 of this reads "No freeman shall be taken, or imprisoned... except by the legal judgment of his peers"

the magna carta