Which word is spelled correctly according to Canadian English standards?

The word "flavour" is spelled correctly according to Canadian English standards. In Canadian English, many words retain the British spelling conventions, which include using a "u" in words like flavour, colour, and honour. This distinguishes Canadian English from American English, which omits the "u" in such words.

Words like "color" and "favorite" are examples of American English spellings, while "travelled," which is also a correct spelling in Canadian English, typically appears with one "l" in American English as " traveled." However, in the context of this question, "flavour" is the strongest example of a word that adheres strictly to Canadian English standards when compared to the other options.