Answer: C. Postmodernists often start with their own lives as a basis for their writing and then embellish it.
Explanation: The movement of Postmodernism was developed between the years 1900 and 2000, and it involved arts, philosophy, literature and architecture. In the ambit of literature, the authors often based their stories on their life of those around them making the stories non-fictional, however, to make the plot more interesting, they added fictional or imaginary elements (they embellish them), that's why it walks a fine line between fiction and nonfiction.
Just did some research, it should be D
The correct use of the introductory comma in the sentence is a clause.
