Nellie Bly was an important figure in the history of journalism for several reasons. First, she was one of the first female investigative journalists. This paved the way for other women to enter the field of journalism and be taken seriously as reporters and writers. Second, she traveled around the world, which was rare for journalists at the time. This gave her a unique perspective that she was able to share with her readers. Finally, she ran her own newspaper, which gave her a great deal of control over the content that was published.
I believe the answer would be opportunity cost. the opportunity cost is the cost to create an item which can result an increase in the price to ensure they make profit