The correct answer is B. Tone
Step-by-step explanation:
In writing and speech tone refers to the way the author expresses his/ her attitude towards his/her writing, speech or a specific topic, this is expressed in the style (expository, narrative, descriptive, persuasive), manner (choice of words), effect or atmosphere (feel transmitted to the reader or audience) and quality (how good a speech or text is). Thus, the element of writing or speech that includes manner, quality, effect or atmosphere is tone.