Answer:
What context is it used in?
Answer: D, because the articles talk about this specific answer and it provides text evidence in the text to this answer.
I would say C, Definitions - because dictionaries are used to see what the words mean in usually a brief explanation and there is no history or language origins (some specific ones may but not ALL DICTIONARIES)
Answer:
C. Be diligent with these three principles and you will master the
sugar-free diet.
Explanation: