The correct answer is: J. K. Rowling.
Patrick Süskind is the author of the novel Perfume: The Story of a Murderer. Anne Frank is the author of the diary The Diary of a Young Girl. Elena Ferrante is the author of the Neapolitan Novels.
Harry Potter and the Cursed Child is a play written by Jack Thorne based on a story co-written by Thorne, J. K. Rowling, and John Tiffany. It is the eighth story in the Harry Potter series and the first to be presented on stage. The play is set 19 years after the events of Harry Potter and the Deathly Hallows and follows the lives of Harry Potter, his son Albus Severus Potter, and their friends.
The play premiered in London on July 30, 2016, at the Palace Theatre. It has since been performed in other cities around the world, including New York, Chicago, and Toronto.