Final answer:
J.K. Rowling went from welfare to becoming the first billionaire author, with option 4: Billionaire being the correct answer. Her success is marked by the immense popularity of the Harry Potter series, which includes books, movies, merchandise, and theme parks.
Step-by-step explanation:
J.K. Rowling was on welfare when she started writing the Harry Potter series and eventually became the first billionaire author. Option 4: Billionaire is the correct choice. Rowling's story is not just about literary success, but also about overcoming personal and financial adversity.
After her first book, Harry Potter and the Philosopher's Stone, was published, the series quickly gained immense popularity, leading to blockbuster movies, merchandise, and theme parks. Her financial status transitioned from living on state benefits to being a billionaire, thereby making her one of the most successful authors in history.