Answer:
it is an adverb phrase modifying came
It is necessary because if you don't have a confirmed opinion with textual evidence to back it up you wont have a good argument.
The correct answer among all the other choices is "The tone of work of fiction or nonfiction is influenced by sentence and word choice." Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
C
due to the fact that ur qn is a mutiple choice qn and i need 20 characters
