The correct answer should be C. A writer's attitude.
Diction is the way in which the author speaks, not a grammatical or a lexical thing. Diction in speeches is similar to the concept of tone in writing.
Answer:
The Last Star concludes the story of 16-year-old Cassiopeia "Cassie" Sullivan battling against the aliens that have invaded Earth. It continues the story from where it left off in The Infinite Sea.
Your answer is the 2nd one hope i could help u out