The passage "The Industrial Revolution is responsible for the rise of the middle class" is most appropriate for a formal essay. The statement provides an analytical observation about the socioeconomic impact of the Industrial Revolution, which is typical of academic or formal writing in the context of history, economics, or sociology. It is not playful or simplified as one would expect in a children's book, nor is it promotional in the way of a hotel brochure. While it could potentially appear in a current newspaper article if the article were discussing historical contexts or their relevance to current events, without additional context, a formal essay is the most fitting type of document for this statement.
