Answer by Mimiwhatsup: Tone is the answer
Why: Tone usually describes what the author is saying and attitude
Definition of Tone: Tone, in written composition, is an attitude of a writer toward a subject or an audience.
I believe it is option A. that is what I would go with.
Answer:
My dear sons and daughters always be happy and cheerful. Never curse your fate. You can read and write every thing lead a useful life you can do every thing in this world, good bye.