Answer:
I believe the correct answer to be: diction.
Explanation:
Denotation is the literal, primary meaning of a word, as opposed to connotation, which is the feeling or idea that a word can invoke.
Tone is an author's attitude towards a subject, the manner the author approaches the topic.
Mood is the way the author feels about the subject.
Taking into consideration the explanation above and knowing that diction is the choice and use of words or phrases in writing, we may conclude that the correct choice is the second one: diction.
