Answer: A.
singular; idiosyncrasy
Explanation: It is not B. because it is not an innumerable talent and there is not a surplus of this talent. It is not C. because it is not insular or an idiom. It is not D. because people are not disconcerted or shocked to the point where they do not know how to act and this talent is not plural. This leaves you with A. singular;idiosyncrasy because it is a talent that not many people have and it is an unusual thing about him.
Hope this helps! :)
Answer:
The definition of "tone" in literature is the way the author expresses his attitude through his writing. The tone can change very quickly or may remain the same throughout the story. Tone is expressed by your use of syntax, your point of view, your diction, and the level of formality in your writing.
Explanation: Hope it helps!!
Sorry I accidently put it in the comments and not the answer!