Which one of the following statements best reflects the central idea of the above passage?

The passage emphasizes that social media platforms are commercial products built by companies whose primary motive is profit, and they promote content that generates user engagement regardless of how inflammatory it may be. This directly indicates that social media are neither ideal nor moral institutions but business products. Option (a) is too narrow and focuses only on marketplace of views. Option (c) is not supported—the passage does not claim social media were created to strengthen democracies. Option (d) makes a normative claim about inevitability that the passage does not endorse. Hence (b) best captures the central idea.